Angle of a prism is 30° and its refractive index is 2 and one of the surface is silvered…
Physics · JEE Advanced · NTA Exams — Optics
Angle of a prism is 30° and its refractive index is \(\sqrt{2}\) and one of the surface is silvered. At what angle of incidence, a ray should be incident on one surface so that after reflection from the silvered surface, it retraces its path
- 30°
- 60°
- 45°
- \(\sin ^{-1} \sqrt{1.5}\)
Answer
(C) 45°
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