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प्रश्न
Jyothi was prepared to measure the temperature of hot water with a clinical thermometer. Is it right or wrong? Why?
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उत्तर
It is wrong, because clinical thermometer has small temperature range (35°C to 42°C or 94°F to 108°F). If it is used to measure the temperature of hot water, the glass will crack/ burst due to excessive pressure created by expansion of mercury.
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संबंधित प्रश्न
Describe a clinical thermometer. How does it differ from the thermometer used in laboratory?
Mercury is often used in laboratory thermometers because it ______.
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 ______.
What is the boiling point of mercury?
Mention any two precautions to be followed while using a clinical thermometer.
Why mercury or alcohol is used in thermometers?
Figure (a–d) shows a student reading a doctor’s thermometer. Which of the figure indicates the correct method of reading temperature?
Why is it advised not to hold the thermometer by its bulb while reading it?
A solid metallic cube having a total surface area of 24 m2 is uniformly heated. If its temperature is increased by 10°C, calculate the increase in the volume of the cube.
(Given: α = 5.0 × 10-4°C-1)
