A simple pendulum is made of bob which is a \( \mathrm{P} \) hollow...

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A simple pendulum is made of bob which is a
\( \mathrm{P} \) hollow sphere full of sand suspended by means of a wire. If all the sand is drained out, the period of
\( \mathrm{W} \) the pendulum will
(1) increase
(2) decrease
(3) remain same
(4) become erratic
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