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प्रश्न
Mercury is often used in laboratory thermometers because it ______.
विकल्प
is a harmless liquid
is silvery in colour and is attractive in appearance
Expands uniformly
is a low cost liquid
उत्तर
Mercury is often used in laboratory thermometers because it Expands uniformly
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संबंधित प्रश्न
A thermometer is used to measure ______.
In thermometer when bulb comes in contact with hot object, liquid inside it ______.
All clinical thermometers have a ______ that prevents mercury from flowing back into the bulb.
A clinical thermometer indicates temperatures from a minimum of ______ °F to a ______ maximum of °F.
Mercury is a poor conductor of heat.
Name the principle which is used in a thermometer.
Why mercury or alcohol is used in thermometers?
Boojho has three thermometers as shown in Figure 4.1. He wants to measure the temperature of his body and that of boiling water. Which thermometer (s) should he choose?
Fig 4.3 (a–d) shows a student reading a doctor’s thermometer. Which of the figure indicates the correct method of reading temperature?
Why is it advised not to hold the thermometer by its bulb while reading it?
