Q137 / 150 · MHT CET 2008 · Physics

In an interference experiment, the spacing between successive maxima or minima is

  • A
    $\lambda d / D$
  • Correct answer
    B
    $\lambda D / d$
  • C
    $d D / \lambda$
  • D
    $\lambda d / 4 D$

Solution

In an interference experiment the spacing between successive maxima and minima is called the fringe width and is given by $$ \beta=D \lambda / d $$

Hence, the correct answer is option: 'B'.

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