A laboratory thermometer is dipped in a beaker containing hot wate | Filo
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Class 7

Science

Physics

Heat

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

  1. rise
  2. fall
  3. it may rise or fall depending upon how much water is kept inside the beaker
  4. neither rise nor fall
Correct Answer: Option(b)
Solution: A laboratory thermometer is dipped in a beaker containing hot water. As the thermometer is removed the mercury level will fall.
As the temperature of hot water is much higher than the room temperature th level of mercury rises but when it is removed then the thermometer comes down as the temperature of room is less than the temperature of hot water hence level will fall
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