Q147 / 170 · Manipal (MET) 2019 · Physics

The coherence of two light sources means that the light waves emitted have

A
same frequency
B
same intensity
Correct answer
C
constant phase difference
D
same velocity

Solution

Coherent sources of light are those sources of light which emit light waves of same wavelength, same frequency and are in same phase or having constant phase difference.

Hence, the correct answer is option: 'C'.

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