In Young's double slit arrangement, the 7th maximum with wavelength $\lambda$₁ is at a distance $d_1$_. and that with wavelength $\lambda$₂ is at a distance d₂ Then d₁/d₂ is

• A

  $\frac{{\mathrm{\lambda }}_1^2}{{\mathrm{\lambda }}_2^2}$

• B

  $\frac{{\mathrm{\lambda }}_2^2}{{\mathrm{\lambda }}_1^2}$

• C

  $\frac{{\mathrm{\lambda }}_1}{{\mathrm{\lambda }}_2}$

• D

  $\frac{{\mathrm{\lambda }}_2}{{\mathrm{\lambda }}_1}$