Question

An ink mark is made on a piece of paper and a glass slab with parallel faces is kept on it. The ink mark appears to be raised up through a distance of 1 cm, when viewed at nearly normal incidence. Find the thickness of glass slab. Refractive index of glass slab=1.6​

Answer 1

Answer:

Answer:-8/3 metre

Explanation:

normal shift given as=t[1-1/RI].

.

t is thickness and RI is refractive index..

1=t[1-1/1.6]

1=t[3/8]

t=8/3 metre