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MHT CET20249 May 2024Evening ShiftPhysicsWave OpticsActual

The fringe width in an interference pattern is ' X '. The distance between the sixth dark fringe from one side of central bright band to the fourth bright fringe on other side is

Options

  1. A1.5 X
  2. B2 X
  3. C5.5 X
  4. D9.5 X

Correct answer

D. 9.5 X

Step-by-step solution

Fringe width is given by, W= D d =X ...(given) Position of 4^ th bright fringe =n D d =4 X aligned Position of 6^ th dark fringe & =(2 n -1) D 2 ~d & =(2(6)-1) X 2 & =5.5 X aligned Total distance =(4+5.5) X =9.5 X

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