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MHT CET202122 Sep 2021Evening ShiftPhysicsWave OpticsActual

If two sources emit light waves of different amplitudes then

Options

  1. Abrightness of fringes is less
  2. Bfringes disappear after short time
  3. Cfringe width is less
  4. Dthere is some intensity of light in the region of destructive interference

Correct answer

D. there is some intensity of light in the region of destructive interference

Step-by-step solution

If amplitudes are different, then in the region of destructive interference, the two waves do not cancel each other completely, hence there is some intensity or light.

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