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प्रश्न
Why do we jerk a clinical thermometer before we measure the body temperature?
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उत्तर
The jerk to the thermometer will allow the mercury level to flow into the bulb so that the mercury level is below the normal temperature.
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संबंधित प्रश्न
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?
A clinical thermometer is calibrated from to ______.
Before use, the mercury level in clinical thermometer should be below ______.
Fahrenheit scale is more sensitive that the Celsius scale.
What is the boiling point of mercury?
Why mercury or alcohol is used in thermometers?
Explain the construction and working of the clinical thermometer.
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.
You may have noticed that a few sharp jerks are given to a clinical thermometer before using it. Why is it done so?
