A sphere has a small cavity at its centre

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

Problem

A sphere

(\mu=\frac{4}{3})

has a small cavity at its centre. An observer looking at it from the right sees the magnification of the diameter of the cavity as (1)

\frac{4}{3}

(2)

\frac{3}{4}

(3)

1

(4)

0.5