Light of wavelength is used in a Young’s double–slit experiment where the slits are…

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

Light of wavelength

500\,\text{nm}

is used in a Young’s double–slit experiment where the slits are

0.30\,\text{mm}

apart and the screen is at a distance of

1.2\,\text{m}

. Which order bright fringe is formed at a point

1.0\,\text{cm}

above the central maximum?