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Ram Sharma • 193.88K Points
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Q. Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by

  • (A) Filling nitrogen under pressure in the stem
  • (B) Increasing the diameter of the tube
  • (C) Using steel tube in place of glass tube
  • (D) Accounting for the tube expansion
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