what is convex lens ?
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Convex lens is that lens which is thicker in the middle than at the edges . A beam of parallel rays of light falls on a convex lens from the left side.
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convex lens ia a lens that converges rays of light that convey parallel to it's principal axis (i.e.,convey the incident ray towards the principal axis) which is relatively thick across the middle and thin at the lower and upper edges.
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