Genius Jnr - State the function of each of the following parts of the human eye: (i) Cornea (ii) Iris (iii) Pupil (iv) Retina Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with a cornea of a donated eye. Your school has organized a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organizing such campaigns in schools.

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State the function of each of the following parts of the human eye:

(i) Cornea

(ii) Iris

(iii) Pupil

(iv) Retina

Millions of people of the developing countries are suffering from corneal blindness. This disease can be cured by replacing the defective cornea with a cornea of a donated eye. Your school has organized a campaign in the school and its neighbourhood in order to create awareness about this fact and motivate people to donate their eyes after death. How can you along with your classmates contribute in this noble cause? State the objectives of organizing such campaigns in schools.

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Planetary Motion Led Newton Establish Inverse Square Rule Gravitational Force Two Bodies Relative Density Mercury 13 6 Statement Mean Fresh Egg Put Beaker Filled Water Sinks Dissolving Lot Salt Water Egg Begins Rise Floats Owls Poor Eyesight Day Time See Well Night Following Conclusions Owls Eye Cannot Drawn Given Informa Use Following Information Answer Next Question Ram Black Coloured Eyes Colour Shyam Eyes Green Part Following Pictures Object Paired Correctly Image Formed Plane Mirror Eye Lens Lens Forms Image Object Onto Retina Information Alternative Completes Given Statement Following Pairs Eye Parts Responsible Controlling Amount Light Entering Eye Use Following Information Answer Next Question Two Plane Mirrors M1 M2 Placed Right Angle Ray Light Regular Reflections Plane Mirror Parallel Incident Rays Reflect Regular Reflections Plane Mirror Parallel Incident Rays Reflect Use Following Information Answer Next Question Given Figure Shows Reflection Three Rays Reflecting S Use 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Question Two Mirrors M1 M2 Placed Angle 100 Laser Torch Kept G Light Ray Strikes Plane Mirror Making Angle 25 Reflecting Surface Angle Reflected Ray Make Normal State Laws Reflection Ii Phenomenon Lateral Inversion Iii Light Incident Plane Mirror Way Makes Ang Draw Labelled Diagram Human Eye Explain Functioning Following Parts Iris Lens Retina Magnification Image Produced Plane Mirror State Whether True False Image Formed Plane Mirror Laterally Inverted Ii Image Distance Always Equal Non Optical Device Helps Visually Impaired Person Read Using Sense Touch Name Disease Prevents Person Donating Eyes Ray Reflected Plane Surface Makes Angle 20 Reflecting Surface Angle Incidence Draw Simple Ray Diagram Show Light Rays Parallel Principal Axis Get Reflected Convex Mirror Fill Blanks Diffused Reflection Reflected Rays Parallel Incident Rays Type Reflection Takes Place Su Two Plane Mirrors M1 M2 Placed Angle Shown Given Figure Light Ray Incident M1 Incident Angle 20 Valu Two Plane Mirrors M1 M2 Placed Right Angle Ray Light Incident M1 P1and Gets Reflected M1 Gets Reflec Two Plane Mirrors M1 M2 Placed Angle Light Ray Incident M1 Angle Shown Given Figure Value Reflected Kind Lens Present Eyes Explain Able See Object Explain Cannot See Objects Clearly Enter Cinema Hall Brightly Lit Room Advantages Two Eyes Ciliary Muscles Eye Stretched Relaxed Help Functioning Eye Draw Labelled Diagram Human Eye Showing Important Parts True Every Relation Symmetric Transitive Also Reflexive Give Reasons Following Functions X R 1 X 1 Bijections Fx X B Fx Sin X2 C Fx Sin X4 None Human Eye Approximate Sphere Radius Name Part Eyes Helps Us Focus Near Distant Objects Quick Succession Far Point Human Eye Normal Vision Fill Blank Absence Causes Colour Blindness Blind Spot Describe Construction Working Human Eye Near Point Eye Normal Vision Fill Blank Absence Causes Poor Visibility Low Light Conditions Name Point Optic Nerves Enter Eyeball Name Two Types Cells Present Retina Eye Eye Adjust Light Varying Intensity Day Time Step Dark Room Standing Sun Sometime Unable See Objects Clearly Explain Two Plane Mirrors M1 M2 Placed Angle Light Ray Incident M1 Angle Shown Given Figure Value Reflected State Laws Reflection Ii Phenomenon Lateral Inversion Iii Light Incident Plane Mirror Way Makes Ang Calculate Area Cross Section Wire Length 1 0 Resistance 23 Resistivity Material Wire 1 84 10 6 Explain Construction Pinhole Camera Name Two Instruments Based Property Reflection Light Radha Wants See Image Mirror Dark Room See Reflection Mirror Give Reason Magnification Image Produced Plane Mirror Draw Labelled Diagram Human Eye Explain Functioning Following Parts Iris Lens Retina Focal Length Eye Lens Change Explain Function Cones Rods Eyes Write Three Differences Human Eye Camera Angle Reflection Light Ray Incident Plane Mirror Angle 30 Ray Reflected Plane Surface Makes Angle 20 Reflecting Surface Angle Incidence Name Device Works Principle Multiple Reflection Light State Practical Purpose Device Characteristics Exhibited Image Formed Pin Hole Camera Ii Write True False Light Always Travels Str Fill Blanks Diffused Reflection Reflected Rays Parallel Incident Rays Type Reflection Takes Place Su Name Eye Part Controls Amount Light Entering Eye Main Function Retina Part Human Eye Contains Rod Cone Cells Name Part Human Eye Contains Photosensitive Cells Name Photosensitive Cells Name Eye Part Pointed Arrow Given Figure Function Part Eye Part Eye Labelled Letter P Given Figure Function Eye Part Good Practices Maintaining Healthy Eyes Student Copied Given Diagram Book Forgot Label Copy Label Diagram Explain Rays Angles Involved Also Draw Diagram Showing Image Formation Plane Mirror Discuss Features Image Formed Spot Retina Contribute Vision Spot Contribute Vision Chetan Green Coloured Eyes Part Eye Gives Distinctive Colour Write One Functions Radha Took Grandfather Eye Specialist Doctor Told Eye Lens Become Cloudy Name Disease Radha Grandfat Sanjay Cannot See Things Clearly Night Name Deficiency Disease Suffering Essential Element Missing D Important Features Eyes Birds Fly Night Time Differentiate Regular Reflection Diffused Reflection Ray Light Incident Angle 90 Surface Angle Reflection Draw Reflected Ray Angle Reflected Ray Incident Ray 90 Angle Incidence Draw Diagram Involved Two Mirrors Inclined Perpendicular Ray Light Incident One End Angle 45 Shown Figure Angle Reflected Complete Paragraph Eye Important Part Human Body Shape Front Part Called Dark Muscular Structure Loc Kaleidoscope Constructed Name Phenomenon Refers Splitting White Light Give One Example Name Constituent Colours White Light Name Four Non Optical Aids Used Visually Challenged Persons Name Optical Instrument Present Human Body Draw Labelled Diagram Experiment Conducted Whereby Incident Ray Making Angle 50 Normal Allowed Fall Mirror Observations Ma Kaleidoscope Constructed Diffused Reflection Indicate Failure Laws Reflection Give Reason Answer Image Formed Plane Mirror Cannot Obtained 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33 Cm 27 Cm Slant Height 10 Cm Find Total Surface Area Use 3 Pack 52 Cards 4 Drawn One One Without Replacement Find Probability Aces Kings Urn Contains 3 White 4 Red 5 Black Balls Two Balls Drawn One One Without Replacement Probability Lea Bag Contains 4 White 7 Black 5 Red Balls Three Balls Drawn One Without Replacement Find Probability Radii Top Bottom Bucket Slant Height 45 Cm 28 Cm 7 Cm Respectively Find Curved Surface Area Bucket Length Rectangular Field 23 Breadth Perimeter Field 206 Area 2420 M2 B 2520 M2 C 2480 M2 2620 M2 Length Rectangular Hall 5 Breadth Area Hall 750 M2 Length 15 B 20 C 25 30 Length Rectangular Field 12 Length Diagonal 15 Area Field 108 M2 B 180 M2 C 303m2 1215m2 Length Diagonal Square 102cm Area 200 Cm2 B 100 Cm2 C 150 Cm2 1002 Cm2 Area Square Field 6050 M2 Length Diagonal 135 B 120 C 112 110 Length Square Field 0 5 Hectare Length Diagonal 150 B 1002 C 100 502m Area Equilateral Triangle 43cm2 Perimeter 9 Cm B 12 Cm C 123 Cm 63 Cm Side Equilateral Triangle 8 Cm Area 24 Cm2 B 243cm2 C 163cm2 83cm2 Side Square Equal Side Equilateral Triangle Ratio Areas 4 3 B 2 3 C 4 3 None Side Equilateral Triangle Equal Radius Circle Whose Area 154 Cm2 Area Triangle 49 Cm2 B 4934cm2 C 73 Find Equation Circle Circumscribes Triangle Formed Lines X 3 0 X 1 0 X 3 Ii 2x 3 0 X 1 0 3x 2y 5 0 I Find Principal Values Following Cos 1 32 Ii Cos 1 12 Iii Cos 1sin4 3 Iv Cos 1tan3 4 Principal Values Evaluate Following Cos 112 2sin 112 Ii Iii Sin 1 12 2 Cos 1 32 Iv Sin 1 32 Cos 132 Find Principal Values Following Tan 113 Ii Tan 1 13 Iii Tan 1cos 2 Iv Tan 12cos2 3 Principal Values Evaluate Following Tan 1 1 Cos 1 12 Ii Tan 12sin4cos 132 Person Comes Bright Sunlight Size Use Following Information Answer Next Question Four Parts Human Eye Labelled Ii Iii Iv Respectively Find Equation Hyperbola Whose Foci 6 4 4 4 Eccentricity 2 Ii Vertices 8 1 16 1 Focus 17 1 Iii Foci 4 One Common Advices Eye Specialist Gives Students Use Following Information Answer Next Question Cells Human Eye Remain Alive 4 6 Hours Even Death Per Use Following Information Answer Next Question Senses Visually Challenged Persons Developed Help Ext Braille System Helps Reference Resources Visually Handicapped Aid Works Sense Hearing Verify Following 0 7 10 1 6 6 4 9 6 Vertices Isosceles Triangle Ii 0 7 10 1 6 6 4 9 6 Vertices Right Solve Following Quadratic Equations Factorization 2x 1 32 X 2 235x X 0 1 2 Real Value X Satisfies Equation 3 4ix3 4ix Ib B A2 B2 1 B 1 C 2 2 Complex Number Z Satisfies Condition Zi Z 1 Lies Circle X2 Y2 1 B X Axis C Axis Line X 1 Z Complex Number Z2 Z2 B Z2 Z2 C Z2 Z2 Z2 Z2 Following Correct Two Complex Numbers Z1 Z2 Z1z2 Z1z2 B Argz1z2 Argz1 Argz2 C Z1 Z2 Z1 Z2 Z1 Z2 Z1 Z Human Eye Light Converted Electrical Signals Ciliary Muscles Human Eye Contract Relax Order Solve 4 X 1 3 Solve 3x 42 512 Length Rectangle 8 Cm Breadth Perimeter Rectangle 80 Cm Length Rectangle 16 Cm B 24 Cm C 28 Cm 18 Cm Length Rectangle 8 Cm Breadth Perimeter Rectangle 80 Cm Area Rectangle 192 Cm2 B 364 Cm2 C 384 Cm2 3 Area Rectangle 11 6 M2 Breadth 46 4 Cm Perimeter 25 464 B 50 928 C 101 856 None Area Rhombus 119 Cm2 Perimeter 56 Cm Height Rhombus 7 5 Cm B 6 5 Cm C 8 5 Cm 9 5 Cm Side Equilateral Triangle 8 Cm Area 163 Cm2 B 323 Cm2 C 243 Cm2 83 Cm2 Area Equilateral Triangle 43 Cm2 Length Side 3 Cm B 4 Cm C 23 Cm 32 Cm Height Equilateral Triangle 6 Cm Area 33 Cm2 B 23 Cm2 C 22 Cm2 62 Cm2 Area Equilateral Triangle Height H 3 H2 B 3a H C 3a H2 3a H2 Use Following Information Answer Next Question Four Students N Standing Plane Mirror Placed Hall Sho Use Following Information Answer Next Question Three Plane Mirrors Arranged Way Reflecting Surfaces Use Following Information Answer Next Question Size Pupil Eye Controlled Extension Contraction Iris Use Following Information Answer Next Question Defective Eye Number Cones Less Normal Eye Defective Ratio Perimeter Circumference Diameter Circle B 2 C 2 4 Area Rhombus 144 Cm2 One Diagonals Double Length Longer Diagonal 12 Cm B 16 Cm C 18 Cm 24 Cm Fig 38 Value K 778 B 738 C 718 758 Use Following Information Answer Next Question Distance Object Normal Eye See Clearly Comfortably Eq Following Pictures Object Paired Correctly Image Formed Plane Mirror Light Ray Strikes Plane Mirror Making Angle 25 Reflecting Surface Angle Reflected Ray Make Normal Use Following Information Answer Next Question Ram Black Coloured Eyes Colour Shyam Eyes Green Part Use Following Information Answer Next Question Two Plane Mirrors M1 M2 Placed Angle 80 Incident Ray Use Following Information Answer Next Question Ray Light Incident Plane Mirror Gets Reflected Angle Use Following Information Answer Next Question Given Figure Shows Four Incident Rays Irregular Surfa Use Following Information Answer Next Question Student Set Two Plane Mirrors Parallel Placed Pencil Use Following Information Answer Next Question Student X Becomes Blind Accident Student Enthusiastic X Z Partners Sharing Profits Losses Ratio 5 3 2 Admit Partnership Give 1 5th Share Profits Find New Use Following Information Answer Next Question Radha Stands Front Plane Mirror Distance 35 Cm Finds Use Following Information Answer Next Question Set Parallel Rays Incident Glass Undergo Diffused Ref Visually Challenged Person Use Braille Kit Help Sense Use Following Information Answer Next Question Owls Poor Eyesight Day Time See Well Night Following B C Partners Sharing Profits Losses Ratio 5 4 1 Calculate New Profit Sharing Ratio Sacrificing Ratio Use Following Information Answer Next Question Consider Listed Activities Performed Four Students Bo Label Given Diagram B Mid Point Line Segment Joining Points 10 6 B K 4 2b 18 Find Value K Distance Ab Light Sensitive Part Human Eye Called Eyeball Approximately Spherical Shape Diameter Normal Human Eyeball Nature Image Object Formed Human Eye Function Iris Human Eye Part Eye Forms Transparent Bulge Front Surface Eyeball Following Observations Arranged Ascending Order 26 29 42 53 X X 2 70 75 82 93 Median 65 Find Value X Numbers 50 42 35 2x 10 2x 8 12 11 8 Written Descending Order Median 25 Find Value X Find Median Data 46 41 77 58 35 64 87 92 33 55 90 Data 41 55 Replaced 61 75 Respectively New Median Mean Data 3 21 25 17 X 3 19 X 4 18 Find Value X Using Value X Find Mode Data Numbers 52 53 54 54 2x 1 55 55 56 57 Arranged Ascending Order Median 55 Find Value X Hence Find Mode Value X Mode Data 24 15 40 23 27 26 22 25 20 X 3 Found 25 Using Value X Find Median Numbers 42 43 44 44 2x 3 45 45 46 47 Arranged Ascending Order Median 45 Find Value X Hence Find Mode Observation Data Increased 8 Mean Remains B Decreased 8 C Increased 5 Becomes 8 Times Original Mean 12 Packets Salt Marked 2 Kg Actually Contained Following Weights Kg Salt 1 950 2 020 2 060 1 980 2 0 Circket Match Batsman Hits Boundary 6 Times 30 Balls Plays Find Probability Hit Boundary Organisation Selected 2400 Families Random Surveyed Determine Relationship Income Level Number Vehic Table Given Shows Marks Obtained 30 Students Test Marks Class Interval 1 10 11 20 21 30 31 40 41 50 Table Given Shows Ages 75 Teachers School Age Years 18 29 30 39 40 49 50 59 Number Teachers 3 27 37 Following Ages Years 360 Patients Getting Medical Treatment Hospital Age Years 10 20 20 30 30 40 40 Marks Obtained 90 Students School Mathematics 100 Given Marks 0 20 20 30 30 40 40 50 50 60 60 70 70 Known Box 800 Electric Bulbs Contains 36 Defective Bulbs One Bulb Taken Random Box Probability Bulb Fill Blanks Probability Impossible Event Ii Probability Sure Event Iii Let E Event P E Iv P E P E V Sample Survey 645 People Found 516 People High School Certificate Person Chosen Random Probability H Medical Examination Students Class Following Blood Groups Recorded Blood Group B Ab Number Students 80 Bulbs Selected Random Lot Lifetime Hours Recorded Lifetime Hours 300 500 700 900 1100 Frequency 1 Survey 364 Children Aged 19 36 Months Found 91 Liked Eat Potato Chips Child Selected Random Probabil Two Coins Tossed 1000 Times Outcomes Recorded Given Number Heads 2 1 0 Frequency 200 550 250 Two Coi Know Opinion Students Subject Sanskrit Survey 200 Students Conducted Data Recorded Opinion Like Disl 80 Bulbs Selected Random Lot Lifetime Hours Recorded Lifetime Hours 300 500 700 900 1100 Frequency 1 Two Coins Tossed Simultaneously 600 Times Get 2 Heads 234 Times 1 Head 206 Times 0 Head 160 Times Tw Prove Following Identities 1 16 Tan3 X1 Tan2 X Cot3 X1 Cot2 X 1 2 Sin2 X Cos2 Xsin X Cos X Solve Following System Equations R 4x 1 3 6x 1 X 0 Prove Following Identities 1 16 1 Sin2 X1 Cot X Cos2 X1 Tan X Sin X Cos X Find Domain Range Following Real Valued Functions Fx Ax Bbx Ii Fx Ax Bcx Iii Fx X 1 Iv Fx X 3 V Fx X Company Opening Credit Balance Surplus E Balance Statement Profit Loss 1 00 000 Year Earned Profit 7 Sushma Natural Blue Eyes Part Eye Gives Blue Colour Role Part Play Functioning Eye Stion Prove Following Identities 1 16 Sec4 X Sec2 X Tan4 X Tan2 X Prove Following Identities 1 16 Sin6 X Cos6 X 1 3 Sin2 X Cos2 X Braille System Enable Visually Challenged People Read Prove Following Identities 1 16 Cosec X Sin X Sec X Cos X Tan X Cot X 1 Prove Following Identities 1 16 Cosec X Sec X 1 Cot X 1 Cos X Tan X Sin X Prove Following Identities 1 16 1 Sin X Cos Xcos X Sec X Cosec X Sin2 X Cos2 Xsin3 X Cos3 X Sin X Draw Diagram Showing Image Formation Plane Mirror Kind Reflection Takes Place Surface Mirror Scrubbed Sand Paper Ambulance Always Labelled Reverse Example Phenomenon Related Reflection Prove Following Identities 1 16 Tan X1 Cot X Cot X1 Tan X Sec X Cossec X 1 Part Determines Amount Light Entering Eye Prove Following Identities 1 16 Sin3 X Cos3 Xsin X Cos X Sin3 X Cos3 Xsin X Cos X 2 Prove Following Identities 1 16 Sec X Sec Tan X Tan Y2 Sec X Tan Tan X Sec Y2 1 State Whether Following Statements True False Justify Answer Points 4 3 B 6 4 C 5 6 3 5 Vertices Par State Whether Following Statements True False Justify Answer Circle Centre Origin Point P 5 0 Lies P Magnification Produced Rear View Mirror Fitted Vehicles Less One B One C Equal One Less One Dependin Use Following Information Answer Next Question Ray Light Torch Incident Surface Mirror Ray Reflected Moon Emit Light One See Following Statements Light Rays False Use Following Information Answer Next Question White Light Incident Surface Portions Get Reflected A Mirror Form Images Plane Glass Slab Cannot Mirror Use Following Information Answer Next Question Path Taken Light Rays Enable Cindy See Toy Car Path Taken Light Rays Enable Martha See Ball Path Taken Light Rays Enable George See Fly Path Taken Light Rays Enable Boy See Tree Use Following Information Answer Next Question Object Identified Image Formed Eye Recognized Brain P Object Seen Light Travelling Object Enters Use Following Information Answer Next Question Given Figure Shows Ryan Looking Book Placed Table Fro Use Following Information Answer Next Question Ted Sitting Room Illuminated Light Shown Given Figure Use Following Information Answer Next Question Nathan Observing Ball Book Kept Room Room Illuminated Following Figures Represents Reflection Light Use Following Information Answer Next Question Ray Light Incident Glass Surface Makes Angle Normal A Figure Represents Reflection Incident Light Ray Plane Mirror Use Following Information Answer Next Question Thin Membrane Front Eye Lens Light Rays Enter Eyes Kn Use Following Information Answer Next Question Four Statements Similarities Simple Camera Eyes Like Part Eye Changes Shape Adjust Amount Light Entering Eye Use Following Information Answer Next Question Camera Light Rays Focused Film Censor Human Eyes Ligh Use Following Information Answer Next Question Ray Light Incident Shiny Surface Mirror Moves Back Me Use Following Information Answer Next Question Bouncing Back Light Shiny Surface Known Splitting Whi Use Following Information Answer Next Question Light Rays Incident Angle Shiny Surface Mirror Thrown Use Following Information Answer Next Question Three Statements Angle Incidence Equal Angle Reflecti Use Following Information Answer Next Question Given Figure Shows Light Ray Incident Mirror Surface Use Following Information Answer Next Question Light Ray Incident Plane Mirror Makes Angle 30 Surfac Use Following Information Answer Next Question Four Statements Reflection Incident Ray Normal Lie Pl Use Following Information Answer Next Question Periscope Instrument Used Making Observations Conceal Use Following Information Answer Next Question Given Figure Angle Reflection Focal Length Eye Lens Adjusted Use Following Information Answer Next Question Given Diagram Human Eye Given Diagram Parts Labelled Primary Function Crystalline Lens Human Eye Human Eye Function Optic Nerves Four Persons P Q R Suffering Four Different Diseases Listed Given Table Person Disease P Asthma Q Di Use Following Information Answer Next Question Tanvir Uses Sense Touch Reading Takes Help Non Optica Following Pictures Shows Image Formation Plane Mirror Use Following Information Answer Next Question Three Statements Regarding Characteristics Image Form Use Following Information Answer Next Question Ray Reflected Plane Surface Makes Angle 20 Reflecting Use Following Information Answer Next Question Arun Combination Two Plane Mirrors M1 M2 Mirrors Plac Use Following Information Answer Next Question Two Plane Mirrors M1 M2 Placed Angle Light Ray Incide Following Objects Regular Reflection Take Place Diffused Reflection Reflected Rays Arefor Parallel Incident Rays Type Reflections Takes Place Surfac Use Following Information Answer Next Question Combination Two Plane Mirrors M1 M2 Inclined Angle 90 Use Following Information Answer Next Question Light Enters Eye Passes Various Parts Eye Transmitted Boy Cannot See Properly Dark Room Deficiency Vitamin Causes Inability Following Precautions Incorrect Regarding Protection Eye Use Following Information Answer Next Question Given Figure Shows Combination Two Plane Mirrors M1 M One Common Advices Eye Specialist Gives Students State One Role Ciliary Muscles Human Eye List Parts Human Eye Control Amount Light Entering Explain Perform Function B Write Function Retina List Parts Human Eye Control Amount Light Entering Explain Perform Function B Write Function Retina State Function Following Parts Human Eye Cornea Ii Iris Iii Pupil Iv Retina Millions People Developi Write Function Following Parts Human Eye Cornea Iris Crystalline Lens Ciliary Muscles B Millions Pe Student Determines Focal Length Device X Focusing Image Distant Object Screen Placed 20 Cm Device Si Due Gradual Weakening Ciliary Muscles Diminishing Flexibility Eye Lens Certain Defect Vision Arises Help Ciliary Muscles Human Eye Change Curvature Thus Alter Focal Length Lens State Changes Occur Cur Write Power Accommodation Human Eye Explain Image Distance Eye Change Change Distance Object Eye Following Characteristic Image Formed Plane Mirror Following Use Plane Mirror Following Reflected Angles Cannot Produced Light Ray Incident Obliquely Plane Mirror Direction Reflected Ray Ray Light Incident Normally Plane Mirror Following Devices Use Plane Mirror Subpart List Four Characteristics Image Formed Plane Mirror Plane Mirrors Aligned Periscope Kaleidoscope Measure Exact Ph Aqueous Solution Ph Meter B Litmus Paper C Ph Paper Universal Indictor Gas Produced Reaction Base Metals Dihydrogen B Dioxygen C Carbon Dioxide Dinitrogen Three Test Tubes P Q R Iron Nails Water Oil Anhydrous Calcium Chloride Taken Among Test Tubes Test T Displacement Reaction Occur Among Following Reactions Insert Image Zn Cuso4 B Fe Cuso4 C Cu Feso4 Mg Table Properties Specimens Given Specimen Melting Point Shining Malleability Electric Conductivity P Statement Wrong Among Following Statement Statement 1 Non Metal Possess Property Ductility Malleabil Properties One Gas Given Identify Gas 1 Produced Haber Process 2 Possesses Intensive Smell Causes Ir Make Correct Pairs Mentioned X X Dehydrating Agent 1 Sulphur Dioxide Gas B Preparation Fire Crackers Water Gas Mixture Gas P Carbon Dioxide Q Hydrogen R Carbon Monoxide Q R B P Q C P R P Q R Component Obtained Refining Petroleum Used Solvent Petrochemicals Tar B Kerosene C Naphtha Petroleum Properties One Mineral Coal Given Identify Mineral Coal 1 Matured Form Mineral Coal 2 Contains 94 98 Called Fossil Fuel Mineral Coal B Petroleum C Natural Gas Given General Formula Alcohol Series Cnh2n 1 Oh Formula Alcohol Containing Four Carbon C5h11oh B C4h9oh C One Girl Student Uses Liquid Compound Remove Nail Paint Nail Liquid Compound Removes Nail Paint Nail Following Methanol Used Making Dyes Phenol Polymer B Used Raw Material Plastic Industry C Preserve R Food Take Body Travels Long Complex Path Starts Mouth Ends Anus Correct Sequence Process Food Digest Statement True Structure Human Heart Walls Atria Thin Wall Ventricles Thick B Bicuspid Valve Right A Part Body Blood Gets Purified Becomes Oxygenated Atrium B Lungs C Heart Ventricle Process Blood Filtered Bowman Capsule Reabsorption B Secretion C Ultrafiltration None Name Short Tubular Region Bowman Capsule Kidney Known Henle Loop B Proximal Tubule C Neck Distal Tub 21 Called Movement Plant Towards Gravity Chemotropism B Geotropism C Hydrotropism Phototropism Following Mis Matched Pair Insulin Pancreas B Estrogens Ovary C Adrenaline Pituitary Gland Testoster Figure Indicates Given Binary Fission Amoeba B Formation Temporary Finger Like Projection Amoeba C B Living Organism Asexual Reproduction Take Place Among Following P Amoeba Q Cladophora R Yeast Banana Process Important Production Gametes Living Organism Performing Sexual Reproduction Context Chromoso Following Chart Depicts Fertilization Male Female Sexual Production True P Q R Following Sr P Q R 1 Correct Sequence Context Least Bio Degradable Biodegradable Material Bones Plastic Paper Metal B Pap Sentence True Context House Hold Waste Management Buy Loose Fruits Vegetables Avoid Packaging B Thro Destroy Forest Actually Destroying Food Wild Life B Wild Life Habitat C Trees Environment Today Using Natural Resources Maximum Following Alternative Correctly Explain Natural Resources Reso Important Parameter Determines Functioning Nano Material Surface Area Volume Ratio Reason Small Gran Make Proper Pair Fullerene B Swnt C Mwnt Carbon 2 B 4 C 1 3 B 3 B 1 C 2 4 C 4 B 2 C 1 3 1 B 3 C 4 2 Understanding Cartesian Sign Convention Reflection Spherical Mirror Students Took Part Group Discuss Statement Wrong Following Reflection Plane Mirror Size Image Size Object B Object Distance Image Dis Coloured Light Scatters Least Fog Smoke Green B Yellow C Blue Red True Far Sightedness Hypermetropia Following Eyelense Become Thin Per Requirement B Distant Object C Specify Colour P Q Following Diagram Magenta Yellow B White Cyan C White Yellow Magenta Cyan Pair Correct Instrument Used Laboratory Uses Following Instrument Uses Voltmeter Measure Electric Po Deposit Copper Iron Spoon Copper Plate Connected Iron Spoon B Positive Terminal C Negative Terminal P Q R Conductors Following Diagram Removing Conductor Bulb Glow B R C Q P Statement True According Ohm Law Current Increase Increasing Voltage Circuit B Resistance Increase I Statement Wrong Following Earthing Wire Green Coloured B India Current Flowing Wire Ac Frequency 50h Match Following Section Section B 1 Fuse P Converts Electric Energy Mechanical Energy 2 Electric Gen Instrument Used Convert Electrical Energy Heat Energy Room Heater B Electric Iron C Electric Bell El Planets Divided Two Groups Based Characteristic Group 1 Group 2 Structure Planets Resemble Earth Str Planets Characteristics Given Option Wrong Among Earth Possesses Living Organism B Venus Bright Plan Statement Wrong Following Statement 1 Metsat Useful Weather Forecasting Statement 2 Insat Useful Dir Planet Sun Sets East Saturn B Venus C Mercury Pluto Honeybee Bites Chemical Enters Body Calcium Formate B Melittin C Formic Acid Magnesium Hydroxide One Student Examines Properties Substance Laboratory Aqueous Solution Substance Converts Blue Litmus Nano Technology Useful Energy Sector Explain 2 Nano Technology Considered Invention Modern Society U Draw Labelled Diagram Experiment Explaining Ohm Law 2 Blind Candidate Write Apparatus Experimental M Isomer Write Isomer Butane Structural Formula 2 Write Industrial Name Two Use Ethyne Write Four Points Difference Arteries Veins 2 Explain Types Waste Based Nature Degradation 2 Solar System Write Name Planets Solar System Sequence 2 Write Definition Acid Base Based Arrhenius Principle Write Limitations Principle 2 Write Properties Hormone 2 Explain Acquired Trait Examples 2 Way Analogous Organs Gives Evidence Evolution Explain Usefulness Dam Constructed River 2 Explain Total Internal Reflection Using Diagram 3 Blind Student Draw Diagram Precautions Taken Use Electricity 3 Write Six Points Write Principle Uses Electric Motor Diagram Con General Formula Alkyne Series Cnh2n B Cnh2n 2 C Cnh2n 2 Cnhn Primary State Transformation Coal Peat B Lignite C Bitumen Anthracite Explain Method Preparation Hydrogen Gas Laboratory Chemical Equation Diagram 3 Explain Cleansing Process Soap Detergent 3 Write Industrial Production Ethanol Two Uses Mineral Coal Obtained Gujarat Ankleshwar B Khambat C Thangadh Kalol Explain Processes Control Human Population 3 Angle Two Bonds Methane Molecule 105 54 B 109 28 C 119 28 190 28 Prepared Fisher Tropsch Method Acetone B Acetic Acid C Acetaldehyde Ethanol Len Formula Derive Formula 1v 1u 1f Spherical Lens 5 Following Monomers Polythene Ch3 Ch3 B Ch2 Ch Ch Ch3 C Ch Ch Ch2 Ch2 Write Name Different Stages Obtaining Pure Metal Ore 5 Explain Refining Copper Electrolysis Diagram Nutrition Explain Heterotrophic Nutrition Types 5 Respiration Write Detail Note Human Respiratory Or Length Small Intestine Adult Human 3 5 B 6 5 C 4 5 2 5 Many Uriniferous Tubules Kidney 10 Lakhs B 20 Lakhs C 30 Lakhs 1 Lakh Following Structure Responsible Transportation Water Higher Plants Sieve Tube B Sieve Cell C Vessel Name Liquid Medium Blood Known Plasma B Blood Particles C Waste Excretory Substances Waste Material Waste Products Stored Plants Plant Cells B Cytoplasm C Phloem Cell Cellular Vacuoles Following Pairs True Testosterone Testes B Adrenaline Pituitary Gland C Pancreas Insulin Progesteron Cerebellum Medulla Oblongata Pons Part Mid Brain B Hind Brain C Fore Brain Spinal Cord Following True Methods Artificial Propagation Fission Budding B Layering Cutting Budding C Cutting L Many Chromosomes Human Ovum 46 B 64 C 23 32 Following Organs Homologous Organs Forelimb Human Lizard B Forelimb Lizard Frog C Wings Bat Birds Wi Human Species Genetic Roots India B America C Africa Australia Famous Constructive Functional Unit Ecosystem B Food Chain C Food Web None Chlorine Main Factor Damage Ozone Layer Cfc Considered Responsible 80 Total Decrease Ozone Layer Pol Names Endangered Plant Species Published Endangered Species Book B Green Data Book C Red Data Book Y One Day Contractor Workers Appeared Forest Cut Trees Men Folk Absent However Women Village Reached F Thermal Conductivity Standard Swnt Long Length Wattm K 3500 Watt K B 35 000 Watt K C 350 K Watt 3600 Name Nanotechnology Known Higher Performance Modern Technology B Ideal Technology C Engineering Tech Direction Incident Ray Shown Following Figure Go Reflection Passes Pole Mirror B Comes Back Directio Following Total Internal Reflection Light Possible Angle Incidence Critical Angle B Angle Incidence Gita Arranges Mirrors Group 1 Group 2 According Magnification Type Image Size Image Following Data S Colour Light Scattered Maximum Atmosphere Red B Yellow C Blue Green Following Figure Colours Number 1 2 Respectively Yellow Blue B Blue Yellow C Yellow Cyan Cyan Yellow Unit Electric Charge Si System Coulomb B Volt C Watt Ampere Used Anode Volta Cell Zinc Plate B Copper Plate C Carbon Rod Iron Plate Connection Resistances Divided Two Groups Follows Group 1 Group 2 Resistances Connected Series Equal Factor Resistance Conductor Depend Upon Volume Conductor B Length Conductor C Area Cross Section Con Gave Law Electromagnetic Induction Oersted B Faraday C Volta Ampere Many Times Ac Electric Current Frequency 50 Hz Change Direction 25 B 50 C 100 200 Figure Showing Fleming Left Hand Rule Given Finger Thumb Shows Direction Flow Electric Current First Following Statements Word Light Year Used Correctly Light Travels Speed 1 Light Year Universe B Cetu Distance Geo Stationary Satellites Earth 37 956 Km B 35 786 Km C 43 000 Km 23 123 Km Accident Space Shuttle Kalpana Chawla Died Columbia B Challenger C Discovery Atlantis Following Statement True Black Hole Emits Radiations Large Number B Temperature Directly Proportiona True Acidic Aqueous Solution H3o 10 7 B H3o 10 7 C H3o 10 7 H3o Oh Formed Reaction Metal Oxide Water Acid B Base C Salt Metal Student Class Discuss Acid Base Rule Follows Student 1 Substance Donates Proton Substance Acid Stude Ant Biten Khushi Playing Feeling Burning Sensation Acid May Entered Body Formic Acid B Melitin C Ben Reaction Metal Obtained Metal Oxide Liquefaction B Reduction C Calcination Roasting Following Substances Hygroscopic Cryolite B Feldspar C Anhydrous Calcium Chloride Slag Molecular Formula Calcium Hydride Cah2 B Cah C Ca2h Ca2h2 Following Carbon React Dilute Hydrochloric Acid B Dichlorine Gas C Dioxygen Gas Dihydrogen Gas N2 G 3h2 G 200 300 Bar773 K 2nh3 G Heat Following Works Catalyst Al2o3 B K2o C Fe V2o5 Following Weak Bleaching Agent Concentrated Sulphuric Acid B Dihydrogen Gas C Sulphur Sulphur Dioxid Give Four Examples Uses Nanostructure History 2 Carbon Forms Backbone Biology Life Earth Justify Write Faradays Laws Electrolysis 2 Write Physical Properties Ethene Gas 2 Explain Preparation Ethene Gas Dehydration Giving Chemical Eq Lymph Explain Constitution 2 Describe Types Biodegradable Waste Giving Examples 2 Write Brief Note Nakshatras 2 Reflection Give Two Examples 2 Many Times Acidic Aqueous Solution 2 Ph Compared 4 Ph 2 Write Two Points Differences Homologous Organs Analogous Organs 2 Heredity Explain Write Importance Forests 2 Looming Formed Explain Figure 3 Explain Construction Working Electric Bell Figure 3 Explain Characteristics Magnetic Field Lines Fig Write Uses Dihydrogen Gas 3 Explain Modern Method Industrial Production Acetic Acid Also Write Two Properties Uses 3 Soap Explai Vegetative Propagation Explain Vegetative Propagation Bryophyllum Figure 3 Explain Refraction Light Lateral Shift Using Rectangular Glass Slab Figure 5 Describe Reactivity Series Metals Also Describe Experiment Decide Order Reactivity Fe Cu Ag 5 Explai Respiration Explain Types Respiration 5 Answer Directed Role Hydrochloric Acid Stomach B Function En Following Alternative Shows Correct Path Oxygenated Blood Flow Human Beings Different Organs Right A Following Statement Wrong Arteries Arteries Carry Blood Heart Different Organs B Arteries Carry Pure Plants Photosynthetic Products Transported Sieve Cells B Sieve Cells Companion Cell C Sieve Tubes Co Say Nephron Structural Functional Unit Kidneys Mean P Kidney Made Many Nephrons Q Filtration Blood O Compared Animals Ability Speech Developed Humans Mainly Development Organ Responsible Mouth B Heart Mimosa Plant Grown One Pot Garden Leaves Get Folded Touching Behaviour Called Scientific Language Ph Organisms Type Reproductions Given Find Correct Alternative Showing Correct Pair Paramoecium 1 Spore Statement X Disease Aids Destroys Immunity Body Statement Gonorrhea Syphilis Sexually Transmitted Di Study Following Statements Choose Correct Alternative P Organs Internal Structure Different Function Following Statement True Variation Organisms P Occurrence Differences Among Individuals Species Know Following Statement Wrong Case Food Chain One Producers Consumers B Energy Available Lower Trophic L Food Chain Deer Eaten Lion Deer Eats Vegetation One Statements Given True P Lion Second Order Consum One Boy Goes School Vehicle Way Reaches Cross Road Red Signal Shown Turns Vehicle Green Signal Appea Increase Population Needs Increased Today World Facing Problem Energy Crisis Must Conserve Energy On Following Statement True Case Carbon Nano Tube Compressive Strength Compared Tensile Strength B Tens Microscopes Used See Extremely Minute Things Cannot Seen Naked Eyes Microscopes Invented P Optical M Signal Light Danger Red Colour Following Principle Principles Used P Red Coloured Light Scatters Lea Figure Given Shows Three Different Mirrors X Z Along Reflected Rays Find Correct Use Mirror Mirror X Ramesh Sitting Last Bench Class L0 Read Whatever Written Teacher Black Board Cannot Read Clearly Tex Sometimes See Rainbow Monsoon Season Fact Correct Rainbow Dispersion Incident Light First Reflection Section Defects Eye Given Section B Effects Arising Due Defects Given Section C Remedies Given Using Two Resistors 4 One Resistor 8 Connected Circuit Shown Equivalent Resistance Points B Circuit 8 B 16 Definite Physical Situation Electric Current Flowing Conductor Directly Proportional Potential Diff Correct Option Given Statement Statement B Statement Current Flowing Resistor Connected Series State Respect Direction Electric Current Conducting Wire Following True Direction Negatively Charged Parti Current Flowing Conductor Creates Magnetic Field Assume Source Magnetic Field Reversing Current Stra Following Case Induced Current Loop Obtained Loop Moved Direction Magnet B Loop Magnet Moved Opposit Solar System Comprises Sun Planets Satellites Asteroids Meteors Following Member Solar System Sun B Following True Case Bar Magnet Magnetic Field Lines Produced Around Magnetic Field Lines Intersect 9 Imaginary Sphere Covering Sky Earth Centre Known Celestial Sphere Ecliptic Celestial Sphere Divided Satellite Launched India Direct Home V Transmission Irs P B Insat 4a C Insat 1 Cartosat Stars Appear Red Colour Blue Colour One Statements True Star Blue Colour Temperature Red Colour Star Following Table Lists Ph Values Acids Bases Solutions Ph Hydrochloric Acid 1 Milk 6 Pure Water 7 Bak 3 Litre Aqueous Solution Prepared Dissolving 4 9 Gram H2so4 Water Calculate Ph Solution Need Calcula Following Substance Enters Body Red Ant Bites Us Melittin B Calcium Formate C Formic Acid Magnesium Substances Acidic Others Basic Scale Called Ph Scale Used Measure Extent Acidity Happen Ph Solution Rods Carbon Copper Hammered Simultaneously Property Carbon Responsible Carbon Rod Breaking Pieces Du Table Given Composition Alloys Based Table Answer Question Name Alloy Elements Alloy Bronz Cu Zn Bra Following Statement Incorrect Corrosion Iron Takes Place Contact Air Water B Method Convert Carbonat Make Correct Pairs Following Given X X Contains Substance Method Manufacture X 1 Extraction Sulphur Ammonia Filled Weather Balloons Work High Altitudes Neutral Gas B Compound Nitrogen C Lighter Air Li Physical Properties Substance Given P Colour Less Q Intense Smell R Aqueous Solution Possesses Basic Fractional Distillation Petroleum Different Fractions Obtained Name Carbon Atoms Temperature Range O Chemical Equations Preparing Substance Given Given Chemical Equation Used Preparation Ethyne 1 Ch3co Statement Wrong Anthracite Matured Form Mineral Coal B Burns Produces Smoke Smell C Heat Energy 33 K Water Gas Mixture Two Gases Carbon Dioxide Hydrogen B Carbon Monoxide Hydrogen C Carbon Hydrogen Amm Section Organic Compounds Section B Uses Mentioned Match Correct Options Section Section B 1 Ethanol Atom Group Atoms Characteristic Reactions Organic Compounds Determined Atom Group Atoms Called Hydro Polymer Used Non Stick Cooking Vessels Polythene B Isoprene C Teflon Neoprene Stomach Important Organ Digestive System Food Churned Stomach Nearly Three Hours Found Stomach Given Nanotechnology Help Face Future Challenges 2 Discuss Two Properties Carbon Nanotubes Give Definition Electric Current Define Unit 2 Briefly Explain Coal Tar Coal Gas 2 Distinguish L P G C N G Draw Diagram Human Excretory System Label 2 Global Problems Mean Global Problems Organisms Facing Today 2 Terrestrial Planets Mention Common Characteristics 2 Reflection Give Two Examples 2 Neutralisation Explain 2 Geographical Isolation Major Factor Speciation Organism Reproduces Sexually Give Reasons Answer 2 Ex Give Approaches Water Management 2 Explain Subtractive Method Mixing Pigment 3 State Characteristics Magnetic Field Lines 3 Precautions Taken Use Electricity Discuss Haber Process Industrial Manufacture Ammonia 3 Soap Describe Preparation 3 Describe Method Production Ethanol Fermentation Reaction Explain Female Reproductive Organs 3 Explain Method Obtaining Pure Aluminium Alumina 5 Concentration Ore Give Method Concentrating Sulphi Draw Labelled Diagram Human Digestive System Explain 5 Nutrition Mode Nutrition Amoeba Known Draw Di Define Term Power Accommodation Write Modification Curvature Eye Lens Enables Us See Nearby Objects Trace Sequence Events Occur Bright Light Focused Eyes Happens Image Distance Normal Human Eye Decrease Distance Object Say 10 1 Justify Answer Write Structure Eye Lens State Role Ciliary Muscles Human Eye Motion Pictures Cinema Make Use Range Visible Light Wavelength Humans 1 Nm 10 9 Ability Eye Adjust Focal Length Called