Q. The refractive indices of glass and quartz w.r.t. air are 3/2 and 12/5 respectively. The refractive index of quartz w.r.t. glass is
A) 8/5
B) 5/8
C) 5/18
D) 18/5
Explanation
(a) Given that,$\ _{a}\mu_{g} = \frac{3}{2}$ and $\ _{a}\mu_{q} = \frac{12}{5}$
So, we get
$\therefore\ _{g}\mu_{q} = \frac{\mu_{q}}{\mu_{a}}.\frac{\mu_{a}}{\mu_{g}} = \frac{\mu_{q}}{\mu_{g}}$
$= \frac{12}{5} \times \frac{2}{3} = \frac{8}{5}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.