A single-slit diffraction pattern is produced in water (index of refraction ) using a…

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

Problem

A single-slit diffraction pattern is produced in water (index of refraction

1.33

) using a slit

0.070\,\text{mm}

wide and a screen

2.0\,\text{m}

away. The second dark band is located

2.8\,\text{cm}

from the central maximum. Calculate the wavelength of the light in vacuum.