QJEEM22Phc550: JEE Main 2022 Physics - Class 11 JEEM22Phc550 Solution: Potential energy as a function of r is given by U = A r 10 − B…

Question

Verified Solution • 2025–26 Session moderate

QJEEM22Phc550: JEE Main 2022 Physics - Class 11 JEEM22Phc550 Solution: Potential energy as a function of r is given by U = A r 10 − B…

Potential energy as a function of r is given by $U = \frac{A}{r^{10}} - \frac{B}{r^{5}}$ , where r is the interatomic distance, A and B are positive constants. The equilibrium distance between the two atoms will be :

Multiple Choice Options

A (AB)15
B (BA)15
C (2AB)15
D (B2A)15

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank

Browse year-wise authentic previous years' questions with solutions

Authentic CBT Mock Tests

Simulate official exam environment with live timer and percentile scoring

Accepted Answer

For equilibrium

$- \frac{d U}{d r} = 0 = \frac{10 A}{r^{11}} - \frac{5 B}{r^{6}}$

$\Rightarrow r^{5} = \frac{2 A}{B}$

And $r = {(\frac{2 A}{B})}^{1 / 5}$

QJEEM22Phc550: JEE Main 2022 Physics - Class 11 JEEM22Phc550 Solution: Potential energy as a function of r is given by U = A r 10 − B…

Multiple Choice Options

Step-by-Step Verified Solution

Related Learning Resources & Exam Preparation