Thermodynamics CMB would to approach question
Good afternoon all,
I have a questions where I need to work out the number of photons in the CMB but I am not sure how to get to it as I have found the energy density with stefan-boltzmann law and before this we have also played with the equation for the plank energy density at maximum.
I know I need to use the equation at plank energy density but I don't know how to do it with those equations if that makes sense.
I know that I could get the answer by doing energy density of the photons/energy of the photons but this wouldn't use the equation which i need to use above.
Thank you for the help!
I have a questions where I need to work out the number of photons in the CMB but I am not sure how to get to it as I have found the energy density with stefan-boltzmann law and before this we have also played with the equation for the plank energy density at maximum.
I know I need to use the equation at plank energy density but I don't know how to do it with those equations if that makes sense.
I know that I could get the answer by doing energy density of the photons/energy of the photons but this wouldn't use the equation which i need to use above.
Thank you for the help!
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