In a Young slits experiment

PHYSICS · Single correct · CBSE · Physics · Wave Optics · Wave Optics

Problem

In a Young slits experiment, the two slits are separated by a distance of

d

and a nearby screen, on which an interference pattern is formed, is a distance

D

away. If the wavelength of light is

\lambda

, the number of maxima per metre in the interference pattern is given by (1)

\frac{d}{\lambda D}

. (2)

\frac{\lambda d}{D}

. (3)

\frac{\lambda D}{d}

. (4)

\frac{dD}{\lambda}