The angle of a prism is A. One of its refracting surfaces is silvered

The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive index μ, of the prism is

Options

(a) 2 sin A
(b) 2 cos A
(c) 1/2 cos A
(d) tan A

Correct Answer:

2 cos A

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. In Young’s double slit experiment, the wavelength of the light used is doubled
  2. A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat
  3. One-fourth length of a spring of force constant K is cut away. The force constant
  4. A particle is released from rest from a tower of height h, i.e,t₁ : t₂ : t₃ is
  5. A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular