When a single slit is illuminated with light of wavelength

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

Problem

500\,\text{nm}

, the distance between the two first-order minima (the full width of the central maximum) on a screen

2.0\,\text{m}

away is measured to be

8.0\,\text{mm}

. Determine the slit width.