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[الغالية]

A charged particle of mass m and charge q is sitting in aharmonic potential v=1/2mw(x sewear)A weak constant electric field E is applied in the z- direction so that the pontial is perturbed by v=-qEx
a) show that there is no change in the energy levels to first order in E )
using the
اكس = 1/دبليو جذر 2 ام ضرب (اي +اي شرطة)