Q. Two light sources are said to be coherent if they are obtained from
A) Two independent point sources emitting light of the same wavelength
B) A single point source
C) A wide source
D) Two ordinary bulbs emitting light of different wavelengths
Explanation
(b) When two sources are obtained from a single source, the wavefront is divided into two parts. These two wavefronts act as if they are emanated from two sources having a fixed phase relationship
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.