1.

Explain the working principle of the thermometer

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Answer:

Thermometer MAKES use of some measurable property (called thermometric property) OFFER substance which CHANGES linearly with temperature.

Thermometric PROPERTIES of different substance and corresponding thermometer are as follows:-)

1. Length of liquid column in capillary .

2. Pressure of a gas at CONSTANT volume.

3. Volume of a gas at constant pressure.

4. Electrical resistance of a metal wire.

5. Thermoelectrical e.m.f.

6.Radiated power.



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