White light is used to illuminate the two slits in Young's double-slit experiment. The separation between the slits is $d$ and the distance between the slits and screen is $D$ $\left(d\ll D\right)$. At a point on the screen directly in front of one of the slits, certain wavelengths are missing. The missing wavelengths are

• A

  $\lambda =\frac{d^2}{D}\left(n-1\right)$
• Correct answer
  B

  $\lambda =\frac{d^2}{D\left(2n-1\right)}$
• C

  $\lambda =\frac{d^2}{D}n$
• D

  $\lambda =\frac{d^2}{Dn}$

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