- #1
Pushoam
- 962
- 52
Homework Statement
I didn't get it.
Consider velocity space.
The no. of velocity vectors for a given speed is proportional to the surface area of a sphere of radius v in the velocity space.
So, a fraction of velocity vectors with speed v in an elemental area dA is##\frac{ dA}A##.
A = ##\Omega v^2##
## dA = d \Omega v^2##
##\frac {dA}A = \frac{d \Omega v^2}{4\pi v^2}
\\ \frac {dA}A =\frac{d \Omega}{4\pi }##How to relate it to eq.6.7?
I didn't get this,too.
Please help me.