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A concave mirror and a convex lensare held in water. What changes, if any, do you expect in their focal length? |
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Answer» 1. The focal length of a concave mirror independent of the medium and A convex lens depends on medium when they are placed in water. The focal length of the mirror – Does not change. 2. The focal length of the convex lens – Changes (means increases 4 times). |
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