Question

Calculate the expectation (average) value of the energy of a particle of mass m confined to move in a one-dimensional box of width a and infinite height with potential energy zero inside the box. The normalized wave function of the particle is

 

ψₙ(x) = (2/a)¹/² sin(nπx/a)

 

Where, n = 1, 2, 3...

22 Aug 2025
Answer :
Word Count : 119
For a particle of mass $m$ in a one-dimensional infinite potential box of width $a$, the Hamiltonian is $\hat{H} = -\frac{\hbar^2}{2m} \frac{d^2}{dx^2}$. The expectation value of the energy for ___ _______ ____ __________ ______ ________.
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