Light passes from a denser medium 1 to a rarer medium 2. When the angle of incidence is θ, the reflected and refracted rays are mutually perpendicular. The critical angle will be
(a) sin-1 (cot θ)
(b) sin-1(tan θ)
(c) sin-1 (cos θ)
(d) sin-1 (sec θ)
Correct Option (b) sin-1(tan θ)
Explanation:
