Home Physics Wave Optics Wave Nature and Interference of Light Two light sources are said to be coherent if…
Physics Wave Optics Wave Nature and Interference of Light MCQ (Single Correct)

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

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Text Solution

Verified by Experts
The correct answer is:
B

When two sources are obtained from a single source, the wavefront is divided into two parts. These two wavefronts acts as if they emanated from two sources having a fixed phase relationship.

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