As pendulum clock gives correct time at the equator, Will it gain time or loose time as it is taken to the poles?

Options

A. It will lose time
B. It will gain time
C. There will be no change
D. It will gain time on the north pole and lose time on the south pole

Answer

B

Explanation

At the north pole, g will increase `(g_(p) gt g_(E ))`
`because T= 2pisqrt((l)/(g))`
T will decrease and hence it will go fast or it will gain time.