Physics

Problem

A laser with wavelength

650\,\text{nm}

illuminates a single slit. The third diffraction minimum is observed at an angle of

2.5^{\circ}

from the central axis. What is the width of the slit? a)

0.030\,\text{mm}

0.045\,\text{mm}

0.022\,\text{mm}

0.052\,\text{mm}