Q. If $\mu_{1}$ and$\ \ \mu_{2}$ are the refractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimized by having
A) $\mu_{1} > \mu_{2}$
B) $\mu_{1} < \mu_{2}$
C) $\mu_{1} = \mu_{2}$
D) None of these
Explanation
(a) Refractive index of core is always greater than refractive index of cladding, to minimize the loss of light.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.