If the two sources of light wave are coherent, then they will give the light wave of same:

  1. Frequency
  2. Wavelength
  3. Both 1 and 2
  4. None of these

Answer (Detailed Solution Below)

Option 3 : Both 1 and 2
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CONCEPT:

Coherent sources:

  • Coherent sources of light are those sources that emit a light wave having the same frequency, wavelength and in the same phase or they have a constant phase difference.

​Coherent sources have the following characteristics:

  1. ​The waves generated have a constant phase difference( are in phase with each other)
  2. The waves are of a single frequency and wavelength.
  3. The waves should have the same amplitude.

EXPLANATION:

  • Coherent sources of light are those sources that emit a light wave having the same frequency, wavelength and in the same phase or they have a constant phase difference. Hence, option 3 is correct.
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