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Wave Optics

Question
CBSEENPH12039636

Young’s double slit experiment the intensity at a point where the path-difference is λ/6(λ being the wavelength of the light used) is I. If I0 denotes the maximum intensity, I/I0 is equal to

  • fraction numerator 1 over denominator square root of 2 end fraction
  • fraction numerator square root of 3 over denominator 4 end fraction
  • 1/2

  • 3/4

Solution

D.

3/4

straight I over straight I subscript max space equals space cos squared space open parentheses straight ϕ over 2 close parentheses