Question

Two vessels $A$ and $B$ of cross-sections as shown in figure contain a liquid up to the same height. As the temperature rises, the liquid pressure at the bottom (neglecting expansion of the vessels) will:

• A. increase in $A$, decrease in $B$
• B. increase in $B$, decrease in $A$
• C. increase in both $A$ and $B$
• D. decrease in both $A$ and $B$

Answer 1

The correct option is C increase in both $A$ and $B$

Volume will expand in both vessels due to increase in temperature, but the increased height will be less in vessel B, due to higher cross sectional area. However, the pressure will increase in both the vessels, hence correct answer is C