PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real is one-third the size of the object. The wavelength of light inside the lens is 32 times the wavelength in free space. The radius of the curved surface of the lens is
(1) 1 m
(2) 2 m
(3) 3 m
(4) 6 m