Laws Of Motion Question 213

Question: A second’s pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket[CBSE PMT 1994]

Options:

A) Comes down with uniform acceleration

B) Moves round the earth in a geostationary orbit

C) Moves up with a uniform velocity

D) Moves up with uniform acceleration

Show Answer

Answer:

Correct Answer: D

Solution:

$ T=2\pi \sqrt{\frac{l}{g}} $ . T will decrease, If g increases. It is possible when rocket moves up with uniform acceleration.



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