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प्रश्न
You may have noticed that a few sharp jerks are given to a clinical thermometer before using it. Why is it done so?
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उत्तर
A clinical thermometer has a kink that prevents immediate backflow of the mercury from the tube to the bulb, thus allowing us to read the temperature conveniently. This is the reason why we give a jerk to the thermometer before taking a new reading. The jerk positions the mercury below the kink into the bulb.
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संबंधित प्रश्न
Describe a clinical thermometer. How does it differ from the thermometer used in laboratory?
The common laboratory thermometer is a ______ thermometer
Why do we jerk a clinical thermometer before we measure the body temperature?
Why do we use Mercury in thermometers? Can water be used instead of mercury? What are the problems in using it?
State the similarities and differences between the laboratory thermometer and the clinical thermometer
Digital thermometers do not use ______.
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?
Figure (a–d) shows a student reading a doctor’s thermometer. Which of the figure indicates the correct method of reading temperature?
