Physics - Heat & Thermo Question with Solution | TestHub

At 20°C a glass flask has volume exactly $200{\mathrm{cm}}^3$ up to a mark on its stem. It is filled to the mark with a liquid of $\gamma =9\times 10^{-4}$ per °C. Stem cross-section is $0.50{\mathrm{cm}}^2$ at 20°C and ${\alpha }_{\text{glass }}=9\times 10^{-6}$ per °C. Find the rise of the level when heated to 50°C, including the change in stem area. Give cm to three decimals.