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Question

Kink is used in a clinical thermometer to:


A
Decrease the accuracy of measurement.
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B
Ease the flow of mercury.
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C
Restrict the backward flow of mercury.
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D
Increase the temperature of thermometer.
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Solution

The correct option is C Restrict the backward flow of mercury.
The kink is used only in a clinical thermometer to restrict the backward flow of mercury so that readings can be taken easily. It is absent in a lab thermometer.

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