In photo electric effect, the energy photon striking a metallic surface is `5.6 xx 10^(-19)J`.
Channel: Doubtnut
Date: 2020-02-20

In photo electric effect, the energy photon striking a metallic surface is `5.6 xx 10^(-19)J`. The kinetic energy of the ejected electrons is `12.0xx 10^(-20)J`. The work function is