Is it possible hf=kT?

1. Dec 3, 2012

phyky

is it possible hf=kT? Under what condtion, it will be the same? where h is Plack constant, f is frequency and k is Boltzmann constant, T is temperature

2. Dec 3, 2012

Staff: Mentor

For any frequency f, there is a T which satisfies the equation.

3. Dec 3, 2012

HomogenousCow

.....

edit:wait jtbell is this ever computed? I have never seen such an equality

Last edited: Dec 3, 2012
4. Dec 3, 2012

f95toli

It is used all the time. Any relation which involves thermal radation to/from a body held at a temperature T will involve thesee terms.
At hf=kBT there are often "transitions" of some sort. In some cases you have a transition from the classical (thermal) to quantum regime when hf=kBT