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Why has nature given us two eyes instead...

Why has nature given us two eyes instead of one ?

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PRADEEP-THE HUMAN EYE AND COLOURFUL WORLD-(Additional)Short answer
  1. Draw the course of rays for correcting a myopic eye.

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  2. Draw the course of rays for correcting a hypermetropic eye.

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  3. Why has nature given us two eyes instead of one ?

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  4. We can see a rainbow on a suuny day by looking at the sky through a wa...

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  5. (a) Name the factors on which deviation of a ray of light through a pr...

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  6. (a) What is the order of longest visible wavelength ? Which colour has...

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  7. (a) What is the frequency of violet colourof wavelength 4000 A^@ ? (...

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  8. (a) Why do spectrum colours recombine on passing through two prisms or...

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  9. (a) Which phenomenon accounts for advanced sunrise and delayed sunset ...

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  10. (a) What is the essential condition for Rayleigh scattering ? (b) In...

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  11. How is the amount of light entering the eye controlled ?

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  12. How do we see colours ?

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  13. Why do different colours deviate through different angles on passing t...

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  14. Give the meaning of the term VIBGYOR. With which phenomenon is it conn...

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  15. What is meant by scattering of light ?

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  16. What is the condition for Rayleigh scattering ?

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  17. What is the order of wavelength of visible light and audible sound?

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  18. What is the size of an air molecule ?

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  19. Can visible light be scattered by atmos//molecules in earth's atmosphe...

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  20. What is the basic cause of atmospheric refraction ?

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