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Select the correct statement(s), out of the following, about diffraction at N parallel slits.

Options

  1. AThere are ( N -1 ) minima between each pair of principal maxima.
  2. BThere are (N-2) secondary maxima between each pair of principal maxima.
  3. CWidth of principal maximum is proportional to 1 / N .
  4. DThe intensity at the principal maxima varies as N ^2 .

Correct answer

D. The intensity at the principal maxima varies as N ^2 .

Step-by-step solution

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