A clinical thermometer has slight bend or knick in its capillary tube why?
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A clinical thermometer has a narrow kink in the capillary tube because when Mercury expands, it pushes through the kink, but when it's taken out of patient mouth, Mercury does not go back to the bulb beacuse if it. Hence, doctor can read the patients temperature easily .
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Answer:
THEROMETER
Explanation:
mercrary has a slight bad or klink in it's capillary tube
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