Physics, asked by shantikoghar, 9 months ago

state the principal of construction of thermometer

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Answered by sunny3743

1

Answer:

The operating principle of a thermometer is quite simple. A known measure of liquid (mercury, alcohol, or a hydrocarbon-based fluid) is vacuum-sealed in a glass tube. The liquid expands or contracts when air is heated or cooled. ... The bulb reservoir is formed by heating one end of the glass tube and pinching it closed.

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