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प्रश्न
Mercury is often used in laboratory thermometers because it ______.
पर्याय
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
In thermometer when bulb comes in contact with hot object, liquid inside 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?
All clinical thermometers have a ______ that prevents mercury from flowing back into the bulb.
Why mercury or alcohol is used in thermometers?
Explain how do you determine the temperature of hot water using a laboratory thermometer?
Boojho has three thermometers as shown in the following figure. He wants to measure the temperature of his body and that of boiling water. Which thermometer (s) should he choose?
Figure (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?
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)
