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प्रश्न
In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. What is the reason for this rise in the level of mercury?
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उत्तर
It is a property of mercury to expand when heated. Hence, after expansion, it rises in the capillary tube.
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संबंधित प्रश्न
A thermometer is used to measure ______.
Mercury is often used in laboratory thermometers because it ______.
Draw the diagram of a clinical thermometer and label its parts.
Before use, the mercury level in clinical thermometer should be below ______.
Fahrenheit scale is more sensitive that the Celsius scale.
Digital thermometers are mainly used to take body temperature.
What is the freezing point of alcohol?
Name the principle which is used in a thermometer.
Why mercury or alcohol is used in thermometers?
We are advised to avoid keeping the clinical thermometer in the sun or near a flame. Why?
