Q. White light is passed through a prism whose angle is $5{^\circ}$. If the refractive indices for rays of red and blue colour are respectively 1.64 and 1.66, the angle of deviation between the two colours will be
A) 0.1 $degree$
B) 0.2 $degree$
C) 0.3 $degree$
D) 0.4 $degree$
Explanation
(a) $\theta = \left( \mu_{v} - \mu_{r} \right)A = 0.02 \times 5{^\circ} = 0.1{^\circ}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.