Light of wavelength is incident on a single slit wide

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

Problem

Light of wavelength

687\,\text{nm}

is incident on a single slit

0.75\,\text{mm}

wide. At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be

1.7\,\text{mm}

from the centre? (a)

0.39\,\text{m}

(b)

0.47\,\text{m}

(c)

0.93\,\text{m}

(d)

1.1\,\text{m}