Post Utme Unilorin 2022 Physics Question 36

Practice objective / multiple choice question 36 from the 2022 Post Utme Unilorin Physics examination.

Post Utme Unilorin 2022 Physics Objective / Multiple Choice
Question 36 POST_UTME_UNILORIN • 2022 • PHYSICS • objective

A particle of mass $m$ is moving in a circular orbit of radius $r$ in a potential $V(r) = \frac{k}{r}$. If the particle's angular momentum is $L = 2 mu r^2 omega$, where $mu$ is the reduced mass and $omega$ is the angular frequency, find the total energy $E$ of the particle.

Answer Options

A. E = \frac{1}{2} m r^2 \omega^2 + \frac{k}{r}
Correct Answer B. E = \frac{1}{2} m r^2 \omega^2 - \frac{k}{r}
C. E = \frac{1}{2} m r^2 \omega^2 + \frac{k}{r^2}
D. E = \frac{1}{2} m r^2 \omega^2 - \frac{k}{r^2}
Correct Answer
B
Correct Option:
E = \frac{1}{2} m r^2 \omega^2 - \frac{k}{r}

About This Question

This is Post Utme Unilorin 2022 Physics Question 36. It is one of the objective questions from the 2022 Post Utme Unilorin Physics examination.

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