A particle is moving in a circular path of radius a under the action of an attractive potential $U = - \frac{k}{{2{r^2}}}$ Its total energy is
A particle is moving in a circular path of radius a under the action of an attractive potential $U = - \frac{k}{{2{r^2}}}$ Its total energy is
- [JEE MAIN 2018]
- A
$\;\frac{k}{{2{a^2}}}$
- B
Zero
- C
$ - \frac{3}{2}\;\frac{k}{{{a^2}}}$
- D
$ - \frac{k}{{4{a^2}}}$
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