Question

A small air bubble is inside a transparent solid cube at exact center and its side length of the cube and $\mu$ is its refractive index, the apparent distance of air bubble from any face of the cube

• A. $\frac{a}{2\mu }$
• B. $\frac{\mu a}{2}$
• C. $\frac{2a}{\mu }$
• D. $\frac{a}{\mu }$

Answer 1

Answer: (A)

Correct answer is (a) $\frac{a}{2\mu }$