As the temperature is increased, the period of a pendulum

Options

A. increase 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 thought its centure of mass still remains at the centure of the bob
C. increases at is effective length increase due to shifting to centre of mass below the centre of the bob
D. decrease as its effective length remains same but the centre of mass shifts above the centre of the bob

Answer

A

Explanation

As the temperature id increased length of the pendulum increases. We know that time period of pendulum

`T=2pisqrt((L)/(g))rArrT propsqrtL,` as L, increases
So, time period (T) also increases.