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What would have been the colour of the s...

What would have been the colour of the sky, in the absence of atmosphere ?

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Black, as there won.t be any scattering of sunlight.
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ZEN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-ZEN ADDITIONAL QUESTIONS SECTION - VERY SHORT ANSWER TYPE QUESTIONS
  1. What is the cause of random wavering or flickering of the objects near...

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  2. Name any two phenomena which arise due to scattering of light in the e...

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  3. What would have been the colour of the sky, in the absence of atmosphe...

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  4. Why are the traffic light-signals [or danger signals] of red colour ?

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  5. What is cornea ?

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  6. Mention the function of eye lens.

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  7. Where does refraction of light rays occur in the human eye ?

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  8. Mention the role of iris in the human eye.

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  9. Which are the light-sensitive cells present in the retina of the human...

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  10. Which nerves carry electrical signals from the light-sensitive cells o...

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  11. Which are the light-sensitive cells present in the retina of the human...

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  12. What is iris?

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  13. Which part of the eye generates electric signals ?

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  14. What is blind spot ?

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  15. What is the function of pupil of the human eye ?

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  16. Which muscles help in changing the shape of the eye lens ?

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  17. State one point of similarity between the image formed by the human ey...

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  18. Why are we not able to see the things clearly when we come out of a dr...

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  19. why does it take some time to see objects in a cinema hall when we jus...

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  20. Define the least distance of distinct vision. What is its value ?

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