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प्रश्न
Answer the following in short.
Why is there a slight bend in the capillary tube of a clinical thermometer near the bulb?
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उत्तर
A slight bend or kink in the capillary tube of the clinical thermometer near the bulb ensures that the mercury does not move back into the bulb when the thermometer is taken out of a person’s mouth for reading.
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संबंधित प्रश्न
Write true or false.
S.I. unit of temperature is Fahrenheit.
A thermometer is graduated in ______.
What does the temperature measure?
What is the normal temperature of the human body? How is it indicated in a clinical thermometer?
Can a clinical thermometer be used to measure the temperature of the boiling water? Give the reason for your answer.
Which of the following temperature conversions is incorrect
K ( Kelvin) = °C ( Celsius) + 273.15
At room temperature Mercury is in ______ state.
The freezing point of alcohol is less than ______.
Go to a doctor or your nearest health centre. Observe the doctor taking the temperature of patients. Enquire:
- Why she dips the thermometer in a liquid before use.
- Why the thermometer is kept under the tongue.
- Whether the body temperature can be measured by keeping the thermometer at some place other than the mouth.
- Whether the temperature of different parts of the body is the same or different.
You can add more questions which come to your mind.
Go to a veterinary doctor (a doctor who treats animals). Discuss and find out the normal temperature of domestic animals and birds.
