A particle of mass $m$ is located in a one dimensional potential field where potential energy is given by : $V(x) = A(1 -cos\, px)$ ,

where $A$ and $p$ are constant.

The period of small oscillations of the particle is

  • A$2\pi \sqrt {\frac{m}{{(Ap)}}} $
  • B$2\pi \sqrt {\frac{m}{{{{(Ap)}^2}}}} $
  • C$2\pi \sqrt {\frac{m}{A}} $
  • D$\frac{1}{{2\pi }}\sqrt {\frac{{Ap}}{m}} $
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