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Twinkling of stars is due to atmospheric...

Twinkling of stars is due to atmospheric:

A

dispersion of light by water droplets

B

refraction of light by different layers of varying refractive indices

C

scattering of light by clouds

D

internal reflection of light by clouds

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MODERN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-EXERCISE
  1. At noon the sun appears white as

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  2. Which of the following is not the property of light?

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  3. Twinkling of stars is due to atmospheric:

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  4. The sky appears blue, because.

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  5. Which of the following statements is correct regarding the propagation...

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  6. The sun appears red at sun rise or sunset, why?

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  7. The water in deeper sections of sea/ocean is much colder than that at ...

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  8. When light rays enter the eye, most of the refraction occurs at the

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  9. Ciliary muslces can change the focal length of eye lens. This phenomen...

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  10. Which of the following statements is correct?

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  11. The colour of sky as seen from the moon, where there is no atmosphere,...

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  12. A dichromatic light of wavelength 5600 oversetcircA and 6300 oversetci...

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  13. Amount of light entering into the camera depends upon:

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  14. The far point of myopic person is 75 cm in front of the eye. The natur...

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  15. What is meant by power of accomodation of the eye?

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  16. The SI unit of power is

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  17. Myopia is corrected by

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  18. Two lenses have powre -3D and +1D respectively are put together. The p...

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  19. The fluid present between eye lens and retina is called

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  20. The wavelength of violet coloured light is

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