Question

On heating a liquid of cubical expansion $\gamma$ in a container having coefficient of linear expansion $\frac{\gamma }{3}$, the level of liquid in the container will:

• A. rise
• B. fall
• C. remains stationary
• D. none of these

Answer 1

Answer: (C)

remains stationary

If linear expansion is $\alpha$, then $\gamma =3\alpha$
Here, $\alpha =\frac{\gamma }{3}$ so ${\gamma }^{\prime }=3\times \frac{\gamma }{3}$
Thus, ${\gamma }^{\prime }=\gamma$.

Hence, volume expansion remain unchanged.