COMEDK · Physics · 25. Ray Optics
A ray of light incident on one face of an equilateral prism at \(60^{\circ}\) enters and leaves the prism symmetrically. Refractive index of the prism material is
- A \(1.5\)
- B \(1.62\)
- C \(1.73\)
- D \(1.8\)
Answer & Solution
Correct Answer
(C) \(1.73\)
Step-by-step Solution
Detailed explanation
Given, angle of prism, \(A=60^{\circ}\) As, the ray of emergence is symmetrical to incident ray. So, the angle of minimum deviation, \(D_{m}=60^{\circ}\). \(\therefore\) Refractive index of prism, \(\mu=\frac{\sin \left(\frac{A+D_{m}}{2}\right)}{\sin \left(\frac{A}{2}\right)}\)…
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