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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
Draw the diagram of a clinical thermometer and label its parts.
A clinical thermometer is calibrated from to ______.
The thermometer which ranger from -10°C to 110°C is ______.
Digital thermometer is widely used for the measurement of the temperature due to ______.
All clinical thermometers have a ______ that prevents mercury from flowing back into the bulb.
A clinical thermometer indicates temperatures from a minimum of ______ °F to a ______ maximum of °F.
Mention any two precautions to be followed while using a clinical 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?
You may have noticed that a few sharp jerks are given to a clinical thermometer before using it. Why is it done so?
How does a clinical thermometer differ from the thermometer used in the laboratory?
