The potential energy of a particle in a force field is: U = A r^2 - B r , where A and B are positive...

Question

The potential energy of a particle in a force field is: U = A r^2 - B r , 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

Accepted Answer

(3)

NEET 2012 Physics question

Solution

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