Frequence and wavelength of a photon

[kinst]

Homework Statement

Calculate the frequency and wavelength of a photon with 6.2 x 10^4 eV of energy.


I have no idea where to start, so can anyone please point me in the right direction.

 

[hage567]

You can relate the energy of a photon to its frequency by using Planck's constant. Have you seen this before: E=hf

Be careful of your units.

 

[kinst]

oh thanks a lot, i used the equation to get frequency
and for the wavelength, i used E = (h)(c) / λdoes it look right?

 

[hage567]

You can do that to get the wavelength, or you could just directly apply the wave equation c=fλ to get it. A little more straight forward if you've already found the frequency.