[QUE/CM-01005#Solu] Periodic Motion $V(x) = V_0 \left( e^{-2x/\alpha} - 2 e^{-x/\alpha}\right) $

Question Plot the Morse potential
$$V(x) = V_0 \left( \exp(-2x/\alpha) - 2 \exp(-x/\alpha)\right) $$
and find the period of small oscillations for a particle having energy
$E$ and moving in fore field described by the Morse potential.}