Question:
Liquid is filled in a flask. On heating, what happens to liquid level?
Liquid is filled in a flask. On heating, what happens to liquid level?
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Container expands first, liquid later $\Rightarrow$ initial fall then rise.
Updated On: Apr 23, 2026
- immediately increases
- initially falls and then rises
- rises abruptly
- falls abruptly
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The Correct Option is B
Solution and Explanation
Concept:
Thermal expansion of container and liquid.
Step 1: Initial stage
Flask (solid) expands first $\Rightarrow$ volume increases $\Rightarrow$ level falls.
Step 2: Later stage
Liquid expands more than container $\Rightarrow$ level rises. Conclusion: \[ {(B)} \]
Step 1: Initial stage
Flask (solid) expands first $\Rightarrow$ volume increases $\Rightarrow$ level falls.
Step 2: Later stage
Liquid expands more than container $\Rightarrow$ level rises. Conclusion: \[ {(B)} \]
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