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प्रश्न
Four arrangements to measure the temperature of the ice in a beaker with a laboratory thermometer are shown in Figure 4.2 (a, b, c and d). Which one of them shows the correct arrangement for accurate measurement of temperature?
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संबंधित प्रश्न
Describe a clinical thermometer. How does it differ from the thermometer used in laboratory?
Why do we use Mercury in thermometers? Can water be used instead of mercury? What are the problems in using it?
Draw the diagram of a clinical thermometer and label its parts.
All clinical thermometers have a ______ that prevents mercury from flowing back into the bulb.
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.
Write a note on the laboratory thermometer.
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?
A laboratory thermometer A is kept 7 cm away from the side of the flame while a similar thermometer B is kept 7 cm above the flame of a candle as shown in Figure 4.5.
Which of the thermometers, A or B, will show a greater rise in temperature? Give a reason for your answer.
