Question:medium

The condition for dark fringes in single slit diffraction is given by \[ \sin\theta=\frac{m\lambda}{a} \] In case light from the entire slit arrives at point of observation in phase, for a bright band sine is equal to

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Central bright fringe occurs at \(\theta=0\).
Updated On: Jun 26, 2026
  • $\pm\dfrac{2\lambda}{a}$
  • 1
  • 0
  • $\pm\dfrac{3\lambda}{a}$
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The Correct Option is C

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