The potential energy of a particle in a force field is 
, where A and B are positive constants and r is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, the potential energy of a particle in a force field,
For stable equilibrium, 
The distance of particle from the center of the field,
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