Physics

Problem

In a Young's double slit experiment, two slits are located

1.5 \text{ mm}

apart. The distance of screen from slits is

2 \text{ m}

and the wavelength of the source is

400 \text{ nm}

. If the

20

maxima of the double slit pattern are contained within the centre maximum of the single slit diffraction pattern, then the width of each slit is

x \times 10^{-3} \text{ cm}

, where

x

-value is ________.