In a Fraunhofer's diffraction obtained by a single slit aperture, the value of path difference for $n^{th}$ order of minima is

  • A

    $n\lambda $

  • B

    $2n\lambda $

  • C

    $\frac{{(2n - 1)\lambda }}{2}$

  • D

    $(2n - 1)\lambda $

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