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A the temperature is increased, the time...

A the temperature is increased, the time period of a pendulum

A

increases as its effective length increases even though its centre of mass still remains at the centre of the bob

B

decreases as its effective length increases even though its centre of mass still remains at the centre of the bob.

C

increases as its effective length increases due to shifting of centre of mass below the centre of the bob.

D

decreases as its effective length remains same but the centre of mass shifts above the centre of the bob

Text Solution

Verified by Experts

The correct Answer is:
A
Since time period of a pendulum of length l is given by
`T = 2pi sqrt( l/g)`
or ` T prop sqrtl`
As the temperature increases, the length l also increases, though its centre of mass still remains at the centre of the bob.
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