The figure shows a schematic diagram showing the arrangement of Young’s double slit experiment

$\mathrm{d}<<1$ and $\mathrm{d}<<\mathrm{D}, \frac{\lambda}{\mathrm{d}} << 1$

Choose the correct statement related to wavelength of light used.

all the above statements are correct

Fringe width $\beta=\frac{\lambda D}{d}$,

thus β ∝ λ

The position of central maxima is independent of the wavelength of the light used.

The position of the n^th maxima,

$\mathrm{y}_{\mathrm{n}}=\frac{\mathrm{n} \lambda \mathrm{D}}{\mathrm{d}}$

Thus, smaller the value of λ, lesser the value of y_n