Test Academy | A pendulum clock is set to give correct time at the sea level. This clock is moved to hill station at an altitude of 2500m above the sea level. In order to keep correct time of the hill station, the length of the pendulum. Has to be reduced, Has to be increased, Needs no adjustment, Needs no adjustment but its mass has to be increased

Question

A pendulum clock is set to give correct time at the sea level. This clock is moved to hill station at an altitude of 2500m above the sea level. In order to keep correct time of the hill station, the length of the pendulum.

Options :

Has to be reduced
Has to be increased
Needs no adjustment
Needs no adjustment but its mass has to be increased

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