Question

why are coherent sources necessary to obtain sustained interference?​

Answer 1

Answer:

. To produce a sustained interference, coherently they cannot emit light waves continuously. ... In Interference phenomena, the coherent source should be independent, because independent sources emit the waves, which don't have the same phase or a constant phase difference.

Answer 2

Qᴜᴇꜱᴛɪᴏɴ :

❥ Why are coherent sources necessary to obtain sustained interference?

ᴀɴꜱᴡᴇʀ :

➯ Coherent sources have almost the same wavelength. Coherent sources are necessary to ensure that the positions of maxima and minima do not change with time. Thereby, producing a sustained interference pattern.

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