The period of oscillation of a simple pendulum of constant length at earth surface is $T$. Its period inside a mine is
The period of oscillation of a simple pendulum of constant length at earth surface is $T$. Its period inside a mine is
- A
Greater than $T$
- B
Less than $T$
- C
Equal to $T$
- D
Cannot be compared
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- [KVPY 2010]
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