Question

On heating a liquid of co-efficient of real expansion $\alpha$ in a container having coefficient of linear expansion $\frac{\alpha }{3}$, the level of liquid in the container will :

• A. rise
• B. fall
• C. remains same
• D. over flows

Answer 1

Answer: (C)

remains same

Coefficient of Volume expansion of the container equals $3\ast \frac{\alpha }{3}=\alpha$
Given the coefficient of real expansion is $\alpha$.
As the coefficient of real expansion of the liquid is same as the coefficient of volume expansion of the container, the liquid level remains the same .