MCQ
$A$ particle of mass $0.5\, kg$ is rotating in a circular path of radius $2m$ and centrepetal force on it is $9$ Newtons. Its angular momentum (in $J·sec$) is:
- A$1.5$
- B$3$
- ✓$6$
- D$18$
✓
Answer
Correct option: C.
$6$
c
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| $(a)$ ${R}_{{H}}$ (Rydberg constant) | $(i)$ ${kg} {m}^{-1} {s}^{-1}$ |
| $(b)$ $h$ (Planck's constant) | $(ii)$ ${kg} {m}^{2} {s}^{-1}$ |
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