Energy directly proportional to frequency

[daNAV1GATOR]

VERY SIMPLE! Please help! - Energy of a gamma ray photon...

Homework Statement

The frequency of gamma radiation is 10^{22} Hz. What is the energy of each gamma ray photon?
Planck's constant, h, is equal to 6.6 x 10^{-34} J*s.

Homework Equations

Energy = hf

The Attempt at a Solution

I'm having a problem with the units...

Energy = (6.6 x 10^{-34} J*s)(10^{22} Hz)
= (6.6 x 10^{-34} J*s)(10^{22} vib/s)
= (6.6 x 10^{-34} J)(10^{22} vib)
= 6.6 x 10^{-12} J

What happens to the 'vibration' unit?
(note: I changed the Hz to vib/s. Is that correct?)

 

[KennyWRX]

Hz = 1/sec

J*sec*Hz = (J*sec)/sec = J (Energy)

 

[daNAV1GATOR]

Thank you!

 

[rock.freak667]

Well a vibration per second is the same as just saying s^{-1} I guess...why? Not too sure.