What is the energy (in electron volts) of a 50 ghz (1 gigahertz = 109 hz) microwave photon?

The frequency of the microwave photon is:

and its energy is given by:

where 
is the Planck constant
f is the photon frequency

By substituting the numbers into the formula, we find the photon's energy:


Now we want to convert it into electronvolts (eV). We know that

Therefore, we should simply divide our energy by this conversion factor, and we get:

Ithink they do have the same properties just in less quantities i think