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AP EAMCET2011PhysicsWave Optics

In the Young's double slit experiment, the resultant intensity at a point on the screen is 75 % of the maximum intensity of the bright fringe. Then the phase difference between the two interfering rays at that point is

Options

  1. A6
  2. B4
  3. C3
  4. D2

Correct answer

C. 3

Step-by-step solution

aligned & Given, I_R=75 % of I_ &= 3 4 I_ &= 3 4 (4 a^2 )=3 a^2 & 4 a^2 ^2 2 =3 a^2 & ^2 2 = 3 4 or 2 = 3 2 & 2 = 6 or = 3 aligned

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