Question

If minimum deviation for an equilateral prism is \(30^\circ\), then refractive index of the prism is:

• A. \(\sqrt{2}\)
• B. \(\frac{\sqrt{3}}{2}\)
• C. 2
• D. 4

Hint:

For an equilateral prism, the minimum deviation is used to calculate the refractive index using the formula: \(n = \frac{\sin\left(\frac{A + D}{2}\right)}{\sin\left(\frac{A}{2}\right)}\), where \(A\) is the angle of the prism and \(D\) is the minimum deviation.

Answer 1

The Correct Option is A