Q. A light ray falls on a glass surface of refractive index $\sqrt{3}$, at an angle 60°. The angle between the refracted and reflected rays would be :
A) 120°
B) 30°
C) 60°
D) 90°
Explanation
[Solution] $\tan 60^\circ = \sqrt{3} = \mu$, so 60° is the Brewster angle; the reflected and refracted rays are perpendicular (90°). Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.