Question

A beam of light is converging towards a point I on a screen. A plane glass plate whose thickness in the direction of the beam = t, refractive index =$\mu$ , is introduced in the path of the beam. The convergence point is shifted by

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Normal shift $△x=(1-\frac{1}{\mu })t$

and shift takes place in direction of ray.