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Why is mercury used in thermometers?
  • a)
    It volume is proportional to square of increase of temperature
  • b)
    It shows linear variation in volume with temperature
  • c)
    Its volume remains constant with temperature
  • d)
    Its volume decreases with increase in temperature
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Why is mercury used in thermometers?a)It volume is proportional to squ...
For measuring temperature in a thermometer we need a substance whose physical properties change with temperature and can be easily related with temperature. Mercury’s volume increases linearly with increase in temperature and hence we can create a scale on the thermometer accordingly.
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Why is mercury used in thermometers?a)It volume is proportional to square of increase of temperatureb)It shows linear variation in volume with temperaturec)Its volume remains constant with temperatured)Its volume decreases with increase in temperatureCorrect answer is option 'B'. Can you explain this answer?
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