MHT CET202311 May 2023Morning ShiftPhysicsRay OpticsActual
The prism has refracting angle ' A '. The second refracting surface of the prism is silvered. Light ray falling on first refracting surface with angle of incidence ' 2 ~A ', reaches the second surface and returns back through the same path due to reflection at the silvered surface. The refractive index of the material of the prism is
Options
- A1 2 A
- B1 2 A
- C2 A
- D2 A
Correct answer
D. 2 A
Step-by-step solution
Normal incidence at silvered surface = i r = 2 ~A A = 2 A A A =2 A