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Which one is filled in the bulb of a thermometer?
  • a)
    Silver
  • b)
    Lead
  • c)
    Copper
  • d)
    Mercury
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which one is filled in the bulb of a thermometer?a)Silverb)Leadc)Coppe...
  • A glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale.
  • Mercury thermometers can be used to determine body, liquid, and vapor temperature.
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Community Answer
Which one is filled in the bulb of a thermometer?a)Silverb)Leadc)Coppe...
We have used mercury in thermometers because it expands in a consistent way when heated, not because of its conductivity. It has been used over other liquids because its rate of expansion is just right for us to be able to make observations in a temperature range we are interested in from a calibrated thermometer. Mercury thermometers are now being banned across the world as mercury is highly toxic to both humans and the environment. Digital alternatives with similar and better ranges exist as well as alcohol thermometers. 
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Which one is filled in the bulb of a thermometer?a)Silverb)Leadc)Copperd)MercuryCorrect answer is option 'D'. Can you explain this answer?
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