A simple pendulum is made of a body which a hollow sphere is containin – McqOptions

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1.	A simple pendulum is made of a body which a hollow sphere is containing mercury suspended by means of a wire. If a little mercury is drained off, the period of pendulum will [NCERT 1972; BHU 1979]
A.	Remains unchanged
B.	Increase
C.	Decrease
D.	Become erratic
Answer» C. Decrease

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