Monochromatic light of wavelength falls on two slits separated by

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

Monochromatic light of wavelength

600\,\text{nm}

falls on two slits separated by

0.50\,\text{mm}

. Find the approximate angular position

\theta

(in milliradians) of the second bright fringe from the centre on a distant screen. (a)

1.8\,\text{mrad}

(b)

1.2\,\text{mrad}

(c)

2.4\,\text{mrad}

(d)

3.6\,\text{mrad}