___ in a clinical thermometer is responsible for keeping the level of mercury from falling even after we take it out of our mouth.

Bimetallic strip

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Bulb

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Capillary

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Constriction

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Solution

The correct option is D Constriction
Constriction is a narrow bend near the bulb of the thermometer. The constriction prevents the back flow of mercury, even after we take the thermometer out of our mouth.

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Similar questions

___ in a mercury thermometer is responsible for keeping the level of mercury from falling even after we take it out of our mouth

When we take out a laboratory thermometer from boiling water, the mercury level does not fall even after few minutes.

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