A particle of mass m moves along the n-axis under the intluence of the potential vi r) =v.(erar-ea"), if the particle oscillates with a small amplitude around t

A particle of mass m moves along the N-axIS under the intluence of the potential Vi r) =V.(eRar-ea"), If the particle oscillates with a small amplitude around the minimum of the notentis what is the period of oscillation ? Take m=4, F%2 and a = (in appropriate units) (d) 11.17 (c) 8.37 (a) 0.12 (b) 1.33 JNU-2011]