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Wave Optics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
Two waves are said to be coherent :
  • A
    If their amplitudes should be the same
  • B
    If only their waves should be the same
  • C
    If amplitude and wavelength should be the same
  • ✓
    If between them phase difference should remain constant and the wavelength should be the same.
✓

Answer

Correct option: D.
If between them phase difference should remain constant and the wavelength should be the same.
(D) - If between them phase difference should remain constant and the wavelength should be the same.

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