Q. 22. (a)Define absolute refractive
index of a medium.'
(b) The radius of curvature of concave
mirror is 50cm. Where should an object be
placed from the mirror so as form its image
at infinity? Justify your answer.
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Explanation:
a) absolute refractive index of a medium refers to the ratio of speed light of vacuum to ratio of speed of light in object
b) object should be. placed between focus and pole respectively to form an image. at infinity
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