The energy of a 700- nm photo is :-

The energy of a 700- nm photon is :-

The energy of a photo of wavelenght lambda is :

What do you mean by photo electric effect? Calculate the energy of one mole of photons of radiations having wave length 200 nm.

The ratio of the energy of a photon with lambda = 150 nm to that with lambda = 300 nm is

A photon of wavelenth 3000 A strikes a metal surface, the work function of the metal being 2.20eV . Calculate (i) the energy of the photon in eV(ii) the kinetic energy of the emitted photo electron and (iii) the velocity of the photo electron.

The maximum kinetic energy of the photo electron is

The kinetic energy of the photo electrons does not depends upon

The maximum energy of emitted photo electrons is measured by

All Photo electrons are not emitted with the same energy as the incident photons. Why?