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10. Wave optics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics10. Wave optics1 Mark
MCQ
Two identical light sources $S_1$ and $S_2$ 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
a
(a)For interference phase difference must be constant.

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