A second's pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket

Options

A. Moves up with uniform accelertion
B. Moves up with a uniform velocity
C. Comes down with uniform acceleration
D. Moves round the earth in a geosterationary orbit.

Answer

A

Explanation

`T=2pi""sqrt((l)/(g))`
When the rocket accelerates upwards g increases to (g+a)