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MHT CET202415 May 2024Morning ShiftPhysicsWave OpticsActual

In biprism experiment, the fringe width is 0.6 mm . The distance between 6^ th dark fringe and 8^ th bright fringe on the same side of central bright fringe is

Options

  1. A6 mm
  2. B4 mm
  3. C1.5 mm
  4. D0.9 mm

Correct answer

C. 1.5 mm

Step-by-step solution

For 8^ th bright fringe, x ₈=8 X For 6^ th dark fringe, aligned & x₆= (6- 1 2 ) X=5.5 X & x₈-x₆=8 X-5.5 X=2.5 X & x₈-x₆=2.5 0.6=1.5 ~mm aligned

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