Q. A second’s pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket
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
Explanation
(d) $T = 2\pi\sqrt{\frac{l}{g}}\ .$ $T$ will decrease, If $g$ increases
It is possible when rocket moves up with uniform acceleration
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.