Question

A point source of light is placed at a depth $h=0.5m$ below the surface of a liquid $\left(\mu =\frac{5}{4}\right)$. Then, the fraction of light energy that escape directly from the liquid surface is :-

• A. $0.1$
• B. $0.2$
• C. $0.3$
• D. $0.4$

Answer 1

The correct option is B $0.2$

Hence, the option $B$ is the correct answer.