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MODERN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-EXERCISE
- The sun appears red at sun rise or sunset, why?
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- Presbyopia is corrected by concave lens. (True/False)
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- The power of lens used to correct myopia is positive. (True/False)
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- The sky appears blue, because.
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- Clouds look white because water droplets of clouds scatter all colours...
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- Twinkling of stars is due to atmospheric:
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- The sun is visible two minutes before sunrise and about two minutes su...
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- Planets twinkle on account of atmospheric refraction. (True/False)
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- What is the far point and near point of human eye with normal vision?
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- Fill ups The ability of the eye lens to adjust its focal length is cal...
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- In human eye,image of an object is formed at …… .
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- The least distance of distnct vision is ………… .
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- Fill ups The defect of the eye due to which distant objects cannot be ...
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- Fill ups The defect of the eye due to which nearby objects cannot be s...
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- Fill ups A person suffering from myopia and hypermetropia uses……………len...
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- Fill ups Old age hypermetropia is called……………. .
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- The phenomenon of splitting of white light into its constituent colour...
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- Fill ups The wavelength of………………colour of light is maximum and…………….co...
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- Name the phenomenon of absorption of light and then re-radiating it in...
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- The intensity of light entering the eye is controlled by
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