A glass hemisphere of radius `10 cm` and `mu=1.5` is silvered over its curved surface. There is an air bubble in the glass `5 cms` from the plane surface along the axis. Find the position of the images of this bubble seen by observer looking along the axis into the flat surface of the atmosphere.

Answer

A, C, D

Explanation

First image will be formed by direct rays 1 and 2,
etc.
`PI_1=(PO)/mu=5/1.5=3.33 cm`
Second image will be formed by reflected rays
3 and 4, etc.

Object is placed at the focus of the mirror. Hence,
`I_2` is formed at infinity.