Consider the following statements about interference of light. A-When crest of one wave coincides with crest…

Consider the following statements about interference of light. A-When crest of one wave coincides with crest of another wave at point, this point is a point of destructive interference. B-Two coherent sources emit wave of same frequency with constant phase difference. Choose the correct option from the following.
  1. Both statements A and B are wrong.
  2. Statement A is correct while statement B is wrong.
  3. Statement B is correct while statement A is wrong.
  4. Both statements A and B are correct.

Solution

The correct option is (C). Statement A is false as the point where two crests coincide is the point of constructive interference. Statement B is true, because coherent sources emit waves of same frequency.

Asked in: MHT CET 2022 (05 Aug Shift 1)

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