How maximum minimum thermometer work what is the role of murcery in this thermometer ?


A maximum-minimum thermometer works according to the expansion or contraction of alcohol in a U-band-shaped tube. 

One side of the U-band-shaped tube measures the maximum temperature and the other side measures the minimum temperature. On the rise of the temperature the alcohol expands and pushes mercury upwards and on the decrease in temperature the alcohol contracts and pulls the mercury in the minimum column resulting in the fall of mercury in a maximum column. Mercury is in the bottom of the U-shaped tube in a maximum-minimum temperature.

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Updated on: 10-Oct-2022

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