NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A particle free to move along the x-axis has potential energy given by

U\left( x \right) = k\left[ {1 - \exp \left( { - {x^2}} \right)} \right]

for

- \infty \le x \le + \infty

where k is a positive constant of appropriate dimensions. Then

View answer and explanation

Correct option: D

For small displacements from x=0, the motion is simple harmonic

Option D (For small displacements from x=0, the motion is simple harmonic) is correct because the potential energy function resembles that of a simple harmonic oscillator near the origin.

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