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MHT CET20227 Aug 2022Morning ShiftPhysicsWave OpticsActual

In Young's double Slit experiment, we get 15 fringes per cm on the screen using light of wave length 560 . For the same setting how many fringes per cm will be obtained with the light of wavelength 7000 ?

Options

  1. A18
  2. B10
  3. C12
  4. D15

Correct answer

C. 12

Step-by-step solution

aligned & X ₂ X ₁ = ₂ ₂ & X ₂ 1 15 = 5 4 & 15 X ₂= 5 4 & X ₂= 1 12 cm & No. off fringes per cm =12 aligned

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