MCQ
What is constant in S.H.M.
- ARestoring force
- BKinetic energy
- CPotential energy
- ✓Periodic time
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$\left(\frac{1}{4 \pi \epsilon_0}=9 \times 10^9 \mathrm{SI}\right.$ unit, mass of $\alpha$ particle $=$ $\left.6.72 \times 10^{-27} \mathrm{~kg}\right)$