How does focal length of a convex lens made up of glass change when it is partially covered by a black cellophane paper
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The image will be complete because all the rays passing through non-dark side will form the image but because of lesser number of rays
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1
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Yes it will. Even if half of the convex lens is covered with black paper, the lens will produce a complete image. however the intensity of the image may be less. It can be observed experimentally by using a lighted candle and a convex lens.
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