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AP EAMCET2001PhysicsWave Optics

Light waves producing interference have their amplitudes in the ratio 3: 2 . The intensity ratio of maximum and minimum of interference fringes is

Options

  1. A36: 1
  2. B9: 4
  3. C25: 1
  4. D6: 4

Correct answer

C. 25: 1

Step-by-step solution

Ratio of amplitudes, a₁ a₂ = 3 2 aligned a₁ & =3 k, a₂=2 k I_ I_ mix & = (a₁+a₂ )^2 (a₁-a₂ )^2 & = (3 k+2 k)^2 (3 k-2 k)^2 = 25 1 I_ man : I_ & =25: 1 aligned

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