Q. Three prisms 1, 2 and 3 have the prism angle $A = 60{^\circ}$, but their refractive indices are respectively 1.4, 1.5 and 1.6. If $\delta_{1},\ \delta_{2},\ \delta_{3}$ be their respective angles of deviation then
A) $\delta_{3} > \delta_{2} > \delta_{1}$
B) $\delta_{1} > \delta_{2} > \delta_{3}$
C) $\delta_{1} = \delta_{2} = \delta_{3}$
D) $\delta_{2} > \delta_{1} > \delta_{3}$
Explanation
(a) $\delta \propto (\mu - 1)$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.