Post Utme Oau 2020 Physics Question 30

Practice objective / multiple choice question 30 from the 2020 Post Utme Oau Physics examination.

Post Utme Oau 2020 Physics Objective / Multiple Choice
Question 30 POST_UTME_OAU • 2020 • PHYSICS • objective

A quantum particle of mass $m$ and charge $q$ is moving in a circular orbit of radius $r$ with a speed $v$. If the particle is in the ground state, find the energy of the particle in terms of $m$, $q$, $r$, and $v$.

Answer Options

Correct Answer A. \(E = \frac{1}{2} m v^2 - \frac{q^2}{8\pi \epsilon_0 r}\)
B. \(E = \frac{1}{2} m v^2 + \frac{q^2}{8\pi \epsilon_0 r}\)
C. \(E = \frac{1}{2} m v^2 - \frac{q^2}{4\pi \epsilon_0 r}\)
D. \(E = \frac{1}{2} m v^2 + \frac{q^2}{4\pi \epsilon_0 r}\)
Correct Answer
A
Correct Option:
\(E = \frac{1}{2} m v^2 - \frac{q^2}{8\pi \epsilon_0 r}\)

About This Question

This is Post Utme Oau 2020 Physics Question 30. It is one of the objective questions from the 2020 Post Utme Oau Physics examination.

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