Question

The refractive index of the material of a glass prism of refracting angle \(60^\circ\) and angle of minimum deviation \(30^\circ\) is

• A. \(\frac{1}{\sqrt{2}}\)
• B. \(\sqrt{2}\)
• C. \(\frac{1}{\sqrt{3}}\)
• D. \(\sqrt{3}\)

Hint:

Remember that the angle of incidence for minimum deviation is \(i = (A + \delta_m)/2\). In this case \(i = 45^\circ\), which is a common value for such problems.

Answer 1

The Correct Option is B