Q. Small vales of numerical aperture (NA) decrease the pulse dispersion but increase losses due to
A) Scattering
B) Absorption
C) Bending
D) Microbending
Explanation
(d) Pulse dispersion $\propto$ numerical aperture of fiber. When numerical aperture of an optical fibre is small, then the energy losses will increase due to micro-bending
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.