Dual Nature Of Radiation

Radiation of wavelength \(300 \mathrm{~nm}\) and intensity \(100 \mathrm{~W}-\mathrm{m}^{-2}\) falls on the surface of a photosensitive material. If \(2 \%\) of the incident photons produce photoelectron, the number of photoelectrons emitted from an area of \(2 \mathrm{~cm}^2\) of the surface is nearly