Question

A laboratory thermometer is dipped in a beaker containing hot water. As the thermometer is removed the mercury level will

A

rise

B

fall

C

it may rise or fall depending upon how much water is kept inside the beaker

D

neither rise nor fall

Medium

Solution

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Correct option is B)

As the temperature of hot water is much higher than the room temperature the level of mercury rises but when it is removed from the beaker, the mercury level starts descending as the temperature of the room is less than the temperature of hot water. 

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