The radius of curvature of the curved surface of a lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will planoconvex (a) act as a convex lens only for the objects that lie on its curved side. (b) act as a concave lens for the objects that lie on its curved side. (c) act as a convex lens irrespective of the side on which the object lies. (d) act as a concave lens irrespective of side on which the object lies.
The radius of curvature of the curved surface of a lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will planoconvex (a) act as a convex lens only for the objects that lie on its curved side. (b) act as a concave lens for the objects that lie on its curved side. (c) act as a convex lens irrespective of the side on which the object lies. (d) act as a concave lens irrespective of side on which the object lies.
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Transcribed Image Text:The radius of curvature of the curved surface of a
lens is 20 cm. If the refractive index of
the material of the lens be 1.5, it will
planoconvex
(a) act as a convex lens only for the objects that lie
on its curved side.
(b) act as a concave lens for the objects that lie on
its curved side.
(c) act as a convex lens irrespective of the side on
which the object lies.
(d) act as a concave lens irrespective of side on
which the object lies.
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