A beam of photons of intensity and wavelength 480 nm is incident normally on a surface

PHYSICS · Subjective · CBSE · Physics · Electromagnetic Waves · Electromagnetic Waves

Problem

A beam of photons of intensity

660 \text{ W m}^{-2}

and wavelength 480 nm is incident normally on a surface. The photons are absorbed by the surface. What is the pressure exerted on the surface?