Post Utme Noun 2019 Physics Question 21

Practice objective / multiple choice question 21 from the 2019 Post Utme Noun Physics examination.

Post Utme Noun 2019 Physics Objective / Multiple Choice

Question 21 POST_UTME_NOUN • 2019 • PHYSICS • objective

A particle of mass $m$ is confined to a one-dimensional box of length $L$. The wave function of the particle is given by (psi(x) = \sqrt{\frac{2}{L}} \sinleft$ \frac{npi x}{L}\right $). What is the expectation value of the position of the particle?

Correct Answer A. \frac{L}{2}

B. \frac{n\pi L}{2}

C. \frac{L}{n\pi}

D. \frac{2L}{n^2\pi^2}

Correct Answer

Correct Option:

\frac{L}{2}

This is Post Utme Noun 2019 Physics Question 21. It is one of the objective questions from the 2019 Post Utme Noun Physics examination.

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