A particle of mass m is contained in a one-dimensional infinite well extending from L L to x= 2 The particle is in its ground state given by ø,(x)= /2/L cos(zx/L). X =- 2 The walls of the box are moved suddenly to form a box extending from x = -L to x=L. what is the probability that the particle will be in the ground state after this sudden expansion?
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