A double convex lens has power and same radii of curvature of both the surfaces

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

A double convex lens has power

P

and same radii of curvature

R

of both the surfaces. The radius of curvature of a surface of a plano-convex lens made of the same material with power

1.5 P

is : (1)

2R

(2)

\frac{R}{2}

(3)

\frac{3R}{2}

(4)

\frac{R}{3}