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PRADEEP-THE HUMAN EYE AND COLOURFUL WORLD-(Mock Test)Sec - A
- Human eye has a light sensitive screen on which images are formed. Wha...
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- What is range of vision ?
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- (a) For a normal eye, what is the least distance of distinct vision ? ...
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- To an astronaut is a spcaceship, the sky appears
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- Explain briefly what is meant by presistence of vision.
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- A person with a myopic eye cannot see objects beyond 1.2 m distinctly....
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- The near point of a hypermetropic person is 50 cm from the eye. What i...
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- The sun looks reddish at the time of sunrise and sunset.
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- The near point of a person has shifted from 25 cm to 75 cm. Name the o...
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- What is meant by accommodation of the eye ?
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- Explain the phenomenon of dispersion of white light through a glass pr...
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- What is the difference between monochromatic light and polychromatic l...
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- What is visible spectrum ? How do we classify it as pure specturm and ...
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- What is cataract ? How is it corrected ?
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- The sun appears oval at sunrise and sunset, but appears circular at no...
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- (a) Why do spectrum colours recombine on passing through two prisms or...
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- A child while playing with his father's spectacles, burnt a hole in a ...
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- What is the myopia (near sightedness) ? Draw a ray diagram to show how...
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- (a) What are bifocal lenses ? When are they required to be used ? (b...
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- Give one example of dispersion of sunlight in nature. Draw course of r...
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