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Convex lens is also called as lens....

Convex lens is also called as _______ lens.

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(i) When light rays parallel to the principal axis are incident on a convex lens, they converge to a point on the principal axis.
(ii) This point is called the principal focus.
(iii) Light ray parallel to the principal axis falling on a convex lens come together, i.e. get focused at principal focus. So this type of lens is called a converging lens.
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