The lower fixed temperature in a celsius thermometer is the melting point of_______.
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Solution
A thermometer is a device used to measure the temperature.
Thermometers are of two types- clinical and laboratory thermometers.
The lowest temperature which can be measured from a laboratory thermometer is 00C, which is the melting point of ice and the highest temperature is marked as 1000C, which is the boiling point of water.
Hence, the lowest fixed temperature in a celsius thermometer is the melting point of pure ice.