The period of oscillation of a simple pendulum of constant length at a place inside a mine is:

The period of oscillation of a simple pendulum of constant length at a place inside a mine is:

A
more than it is on the surface of the earth
B
less than it is on the surface of the earth
C
the same as it is on the surface of the earth
D
the same as it is on the surface of the moon

Solution:

Inside a mine, g decreases and hence T increases

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