Question

State the reason why two independent sources of light cannot be considered as a coherent source

Answer 1

Answer: Two independent sources of light cannot be coherent. This is because light is emitted by individual atoms, when they return to ground state. Even the smallest source of light contains billions of atoms which obviously cannot emit light waves in the same phase.

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Answer 2

Answer:

there are 2 reason for 2 independent sources cannot be coherent are as follows:-

Explanation:

(i).The phase difference between 2 waves will not be constant

(ii).The wavelength and frequency of rhe waves will be different