Q.54 A particle in one dimensional box of length 2a with potential energy V =}º \xl a is perturbed by the potential V' = cx eV, where c is a constant. The 1st order correction to the 1st excited state of the system is хсeV.
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A: hcλ=E4-E1=h28mL2n2f-n2iλ=8mL2chn2f-n2i
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