The radius of curvature of the curved surface of a plano-convex lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will

The radius of curvature of the curved surface of a plano-convex lens i

1.	The radius of curvature of the curved surface of a plano-convex lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will
Answer» ACT as a convex lens only for the objects that lie on its curved side. act as a concave lens for the objects that lie on its curved side. act as a convex lens irrespective of the side on which the object lies. act as a concave lens irrespective of side on which the object lies. Solution :For plano convex lens,R=20 cm,`mu=1.5` `f=(R)/(mu-1)=(20)/(1.5-1)=(20)/(0.5)=40` cm As here `f GT 0 implies` It acts like a convex lens.

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The radius of curvature of the curved surface of a plano-convex lens is 20 cm. If the refractive index of the material of the lens be 1.5, it will

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