Advertisements
Advertisements
प्रश्न
Jyothi was prepared to measure the temperature of hot water with a clinical thermometer. Is it right or wrong? Why?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
What is the use of kink in clinical thermometer?
Draw the diagram of a clinical thermometer and label its parts.
The thermometer which ranger from -10°C to 110°C is ______.
Before use, the mercury level in clinical thermometer should be below ______.
Mercury is a poor conductor of heat.
Name the principle which is used in a thermometer.
Explain the construction and working of the clinical thermometer.
Figure (a–d) shows a student reading a doctor’s thermometer. Which of the figure indicates the correct method of reading temperature?
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.
In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. What is the reason for this rise in the level of mercury?
