Advertisements
Advertisements
प्रश्न
Distinguish between a clinical and a laboratory thermometer.
Advertisements
उत्तर
Difference between laboratory and clinical thermometer.
| Laboratory thermometer | Clinical thermometer |
| The range of temperature is high | The range of temperature is low |
| It has no kink in it | It has a kink (constriction) in it |
| It is used to measure the temperature of chemical reactions | It is used to measure the human body temperature |
APPEARS IN
संबंधित प्रश्न
In the ball and ring experiment, if the ball after heating is left to cool on the ring for sometime, the ball again passes through the ring. Explain the reason.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. Explain the reason.
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
At what temperature the pure water has (a) maximum density (b) minimum volume?
What is meant by thermal expansion?
Give reasons for the following:
Telephone wires sag in summer.
The diagram shows a sketch graph showing a change in volume of a given mass of ice at -5°C to water at 15°C.

(i) Why does the temperature along BC remain constant?
(ii) When is the volume of water minimum?
(iii) At what temperature does water have maximum density? Explain.
Complete the following sentence:
When ice melts its volume ______ and density _______.
What is thermal expansion?
What type of glassware is used in laboratories? Why?
