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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 ______.
In thermometer when bulb comes in contact with hot object, liquid inside it ______.
Mercury is often used in laboratory thermometers because it ______.
Heat energy transfer from ______ to ______.
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 |
A clinical thermometer is not used to measure the temperature of air, why?
What is the use of kink in clinical thermometer?
Fahrenheit scale is more sensitive that the Celsius scale.
Digital thermometers are mainly used to take body temperature.
Why mercury or alcohol is used in thermometers?
