Chemistry - Atomic Structure Question with Solution | TestHub

In a photoelectric effect setup, a point source light of power

$\left(\frac{P}{4\pi R^2}\right)=3.2\times 10^{-3}W$ emits monoenergetic photons of energy $5.0eV$. These photons fall on a metallic sphere of radius $r=6mm$ and work function $3.0eV$ at a distance of $0.6m$. The efficiency of photoelectron emission is one for every $10^5$ incident photons. Assume that the sphere is located and initially neutral, and that photoelectrons are instantly swept away after emission.

;Given hc = 1240 eV - nm]