**Question:**

**If the potential energy between two molecules is given by $U=-\frac{A}{r^{6}}+\frac{B}{r^{12}}$, then at equilibrium, separation between molecules, and the potential energy are:**

$\left(\frac{B}{2 A}\right)^{\frac{1}{6}},-\frac{A^{2}}{2 B}$

$\left(\frac{B}{A}\right)^{\frac{1}{6}}, 0$

$\left(\frac{2 B}{A}\right)^{\frac{1}{6}},-\frac{A^{2}}{4 B}$

$\left(\frac{2 B}{A}\right)^{\frac{1}{6}},-\frac{A^{2}}{2 B}$

Question of from chapter.

JEE Main Previous Year Sep. 06, 2020

Correct Option: 3

**Solution:**

### Related Questions

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