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प्रश्न
A laboratory thermometer A is kept 7 cm away on the side of the flame while a similar thermometer B is kept 7 cm above the flame of a candle as shown in the following figure.
Which of the thermometers, A or B, will show a greater rise in temperature? Give reason for your answer.
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उत्तर
Thermometer B will show a greater rise in temperature because hot air rises up or air on the top of the candle flame is getting heated by convection.
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संबंधित प्रश्न
Mercury is often used in laboratory thermometers because it ______.
Heat energy transfer from ______ to ______.
What is the use of kink in clinical thermometer?
Mercury is a poor conductor of heat.
Fahrenheit scale is more sensitive that the Celsius scale.
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 |
What is the boiling point of mercury?
Name the principle which is used in a thermometer.
Write a note on the laboratory thermometer.
Figure (a–d) shows a student reading a doctor’s thermometer. Which of the figure indicates the correct method of reading temperature?
