why coherent sources are required for interference of light ?

Asked by kbhardwaj.growel | 21st Jul, 2017, 08:22: PM

Expert Answer:

-This is because light beams are emitted by millions of atoms radiating independently so the phase difference betwwwn waves between non coherent sources fluctuates randomly at a very high frequency.
-Therefore for an interference of light, it is important for the sources to be coherent.

Answered by Abhijeet Mishra | 22nd Jul, 2017, 03:39: PM