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![[Post New]](/templates/default/images/icon_minipost_new.gif) 30 Jan 2008 18:26:44 IST
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If the RI of the medium in which the lens is placed is more than the RI of the material of the lens, then the lens changes its behavior. A convex lens behaves as a concave lens and vice-versa.
ed ; it is a mistake in Q ( assumed RI of oil is greater than that of lens material )
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it is not important where u stand, but in which direction u are moving |
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