MCQ
A simple pendulum executing $S.H.M.$ is falling freely along with the support. Then
- AIts periodic time decreases
- BIts periodic time increases
- ✓It does not oscillate at all
- DNone of these
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$\vec E$ $=(5\,N / kg)\, \hat i + (12\,N / kg)\,\hat j$
If the potential at the origin is taken to be zero, then the ratio of the potential at the points $(12\,m, 0)$ and $(0, 5\,m)$ is

(Velocity of sound in air $=333 \mathrm{~m} / \mathrm{s}$ )