Rank the following radiations according to their photon energies: i)Yellow light ii)Gamma ray iii)Radio wave iv)Microwave

Photon energy is given as

 

E = hν

 

Now, the order of frequency for the above radiations is

 

ν_radio < ν_microwave < ν_yellow < ν_gamma

 

Thus, the order of photon energy is

 

E_radio < E_microwave < E_yellow < E_gamma