NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Analyzing +4 | -1

The potential energy function along the positive

x

-axis is given by

U(x)=-a x+\frac{b}{x}, a

and

b

are constants. If it is known that the system has only one stable equilibrium configuration, the possible values of

a

and

b

are

View answer and explanation

Correct option: A

a=-1, b=2

Option A (

a=-1, b=2

) is correct. For stable equilibrium, the second derivative of the potential energy must be positive, and the first derivative must be zero at the equilibrium point.

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