A photon of wavelength ` 4 xx 10^(-7) m` strikes on metal surface , the work function of the metal being ` 2. 13 eV` Calculate :
(i) the energy of the photon (ev)
(ii) the kinetic energy fo the emission and
the velocity of the photoelectron `( 1 eV = 1 , 6020 xx 10^(-19) J)`,

Explanation

To solve the problem step by step, we will follow the instructions given in the video transcript and break it down into clear steps.

### Step 1: Calculate the Energy of the Photon

The energy of a photon can be calculated using the formula:

\[
E = \frac{hc}{\lambda}
...