Question

A white dwarf star has volume V and contains N electrons so that the density of electron is $n=\frac{N}{V}$. Taking the temperature of the star to be 0 K, what will be the expression for average energy per electron in the star?

• A. $\frac{3h^2}{m}(3π^2n)^{3/2}$
• B. $\frac{3h^2}{10m}(3π^2n)^{2/3}$
• C. $\frac{h^2}{m}(3π^2n)^{2/3}$
• D. $\frac{3h^2}{10m}(3π^2n)^{1/3}$

Answer 1

Answer: (B)

$\frac{3h^2}{10m}(3π^2n)^{2/3}$

Answer 2

The correct option is (B)