As the temperature is increased, the period of a pendulum: - Vidyadip

MCQ

As the temperature is increased, the 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 to 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.

✓

Answer

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

Explanation:

As the temperature is increased length of the pendulum increases.

We know that, time period of pendulum $\text{T}=2\pi\sqrt{\frac{\text{L}}{\text{g}}}$

$\Rightarrow\text{T}\propto\sqrt{\text{L}}$

As L, increases so, time period (T) also increases.

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