The eye lens contains a liquid called
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Astigmatism occurs when the cornea does not have a truly spherical shape. The defect can be cured by
Astigmatism occurs when the cornea does not have a truly spherical shape. The defect can be cured by
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Long sightedness is caused by eyeball being too short. It can be corrected by
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Which of the following colours is the least deviated on passing through a prism?
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The eye lens is a
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The image on the retina remains for 1/16th of sec. This is called as
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Cornea is a transparent spherical structure which
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The rod cells responds to
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The effect of glass prism is only to separate the seven colours of
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Who discovered the experiments with glass prism that white light consists of seven colours?
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The __ colour is at the top and ____ colour is at the bottom of spectrum
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Sunlight is a mixture of __ visible colours
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