MCQ
Two identical light sources $S$ and $S$ emit light of same wavelength $\lambda$. These light rays will exhibit interference if
  • Their phase differences remain constant
  • B
    Their phases are distributed randomly
  • C
    Their light intensities remain constant
  • D
    Their light intensities change randomly

Answer

Correct option: A.
Their phase differences remain constant
For interference phase difference must be constant.

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