Question

Select One Correct Option from the following: The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real and is one-third the size of the object. The wavelength of light inside the lens is $\frac{2}{3}$ times the wavelength in free space. The radius of the curved surface of the lens is
(A) 1 m
(B) 2 m
(C) 3 m
(D) 6 m.

Answer 1

a option is correct I think

Answer 2

A 1 metre is correct

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