If the potential energy between two molecules is given by U=- Ar^6+ Br^12 , then at equilibrium, separation between molecules, and the potential energy are

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Correct answer: C. (c) JEE Main 2020 F=- dU dr =-( 6Ar^7- 12Br^13) F=0 ⇒r= ( 2BA )^1/6 U ( atr= ( 2BA )^1/6 )=- A^24B

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

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