1st and 2nd moments of H(mu) function

[Isheteyak Zaffer]

I have this question from radiative transfer for my assignment. Relation between 1st and 2nd moments of H(mu) function in radiative transfer.

 

[Ken G]

It's likely there is a language barrier here, but you still need a more specific question. If you are dealing with the H(mu) function, you are doing advanced radiative transfer, at the level of a physics major. If you want to study physics at such an advanced level, you will have to learn to think for yourself. So you should at the very least begin to study those moments on your own, and then if you form a more specific question, you can ask that, but if you don't think for yourself you cannot learn advanced physics.