Question

How to calibrate a thermometer at upper and lower fixed points

Answer 1

Answer:

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To mark the upper fixed point, the thermometer is placed in a hypsometer containing water as shown in the figure. The bulb of the thermometer should be outside the water. When the mercury level becomes stationary at a temperature of steam, the level is marked, which represents the upper fixed point of the thermometer.

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Answer 2

To mark the upper fixed point, the thermometer is placed in a hypsometer