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MHT CET202311 May 2023Morning ShiftPhysicsWave OpticsActual

In biprism experiment, if 5^ th bright band with wavelength ₁^ coincides with 6^ th dark band with wavelength ₂ ^ then the ratio ( ₂ ₁ ) is

Options

  1. A9 7
  2. B7 9
  3. C10 11
  4. D11 10

Correct answer

C. 10 11

Step-by-step solution

The fifth bright band will be: y ₅= 5 ₁ D d The sixth dark band will be: aligned & y ₆ ^ = 11 ₂ D 2 ~d & Given: y ₅= y ₆^ 5 ₁ D d & = 11 ₂ D 2 ~d 5 ₁ & = 11 ₂ 2 ₂ ₁ & = 10 11 aligned

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