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Two monochromatic light beams have intensities in the ratio 1:9. An interference pattern is obtained by these beams. The ratio of the intensities of maximum to minimum is

Options

  1. A8: 1
  2. B9: 1
  3. C3: 1
  4. D4: 1

Correct answer

D. 4: 1

Step-by-step solution

I_ I_ = ( I₁ + I₂ )^2 ( I₁ - I₂ )^2 (4)^2 (2)^2 16 4 =4

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