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Give one example of dispersion of sunlig...

Give one example of dispersion of sunlight in nature. Draw course of rays for the formation of primary rainbow. What is the essential condition for observing a rainbow ?

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Give one example of dispersion of light in nature.

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PRADEEP-THE HUMAN EYE AND COLOURFUL WORLD-(Mock Test)Sec - A
  1. Human eye has a light sensitive screen on which images are formed. Wha...

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  2. What is range of vision ?

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  3. (a) For a normal eye, what is the least distance of distinct vision ? ...

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  4. To an astronaut is a spcaceship, the sky appears

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  5. Explain briefly what is meant by presistence of vision.

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  6. A person with a myopic eye cannot see objects beyond 1.2 m distinctly....

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  7. The near point of a hypermetropic person is 50 cm from the eye. What i...

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  8. The sun looks reddish at the time of sunrise and sunset.

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  9. The near point of a person has shifted from 25 cm to 75 cm. Name the o...

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  10. What is meant by accommodation of the eye ?

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  11. Explain the phenomenon of dispersion of white light through a glass pr...

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  12. What is the difference between monochromatic light and polychromatic l...

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  13. What is visible spectrum ? How do we classify it as pure specturm and ...

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  14. What is cataract ? How is it corrected ?

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  15. The sun appears oval at sunrise and sunset, but appears circular at no...

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

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  17. A child while playing with his father's spectacles, burnt a hole in a ...

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  18. What is the myopia (near sightedness) ? Draw a ray diagram to show how...

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  19. (a) What are bifocal lenses ? When are they required to be used ? (b...

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  20. Give one example of dispersion of sunlight in nature. Draw course of r...

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