# Higher frequency => higher energy

• B
can someone explain why high frequency waves contain higher energy?

thanks!

Chandra Prayaga
If these are EM waves we are talking about, then each photon has energy equal to hf where h is Planck's constant and f is the frequency of the wave. To say that high frequency waves "contain" higher energy is not quite correct. The energy of a wave is proportional to the square of the amplitude, which is related to the number of photons. So certainly it is correct to say that a photon of higher frequency has higher energy.

LLT71
Nugatory
Mentor
can someone explain why high frequency waves contain higher energy?