Question

If the potential energy of a gas molecule is $U=\frac{M}{r^{6}}-\frac{N}{r^{12}}$, M and N being positive constants, then the potential energy at equilibrium must be(a) zero(b) $\frac{M^{2}}{4N}$(c) $\frac{N^{2}}{4N}$(d) $\frac{MN^{2}}{4}$

Answer 1

ur answer is option no b

Answer 2

Answer:

option b is your answer...

Explanation:

hope it helps you.....