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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
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उत्तर
Mercury is often used in laboratory thermometers because it Expands uniformly
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संबंधित प्रश्न
The body temperature of a healthy man is;
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 |
Jyothi was prepared to measure the temperature of hot water with a clinical thermometer. Is it right or wrong? Why?
Before use, the mercury level in clinical thermometer should be below ______.
Match the following :
| 1. | Mercury | a. | Maximum minimum thermometer |
| 2. | Weather report | b. | -173.15 degree C |
| 3. | 32degree F | c. | Opaque and shining |
| 4. | 100 K | d. | 0 degree C |
Name the principle which is used in a thermometer.
Explain how do you determine the temperature of hot water using a laboratory thermometer?
You may have noticed that a few sharp jerks are given to a clinical thermometer before using it. Why is it done so?
How does a clinical thermometer differ from the thermometer used in the laboratory?
A solid metallic cube having a total surface area of 24 m2 is uniformly heated. If its temperature is increased by 10°C, calculate the increase in the volume of the cube.
(Given: α = 5.0 × 10-4°C-1)
