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Question
Why is it advised not to hold the thermometer by its bulb while reading it?
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Solution
It is advised not to hold the thermometer by its bulb while reading it because on holding a thermometer by its bulb, the mercury in the bulb expands due to our body temperature and gives a false reading.
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RELATED QUESTIONS
A thermometer is used to measure ______.
Mercury is often used in laboratory thermometers because it ______.
Match the following
| i. | Clinical thermometer | A form of energy |
| ii. | Normal temperature of human body | 100°C |
| iii. | Heat | 37°C |
| iv. | Boiling point of water | 0°C |
| v. | Melting point of water | Kink |
What is the use of kink in clinical thermometer?
A clinical thermometer is calibrated from to ______.
Digital thermometers do not use ______.
All clinical thermometers have a ______ that prevents mercury from flowing back into the bulb.
Digital thermometers are mainly used to take body temperature.
What is the boiling point of mercury?
Mention the use of laboratory thermometers.
