Advertisements
Advertisements
प्रश्न
Water is heated from 0°C to 4°C. Will it expand?
Advertisements
उत्तर
Substances expand on heating.
But WATER—CONTRACTS with heated from 0°C to 4°C. After that i.e. above 4°C water starts expanding.
APPEARS IN
संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
A metal plate is heated. State three factors on which the increase in its area will depend.
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.
At what temperature the pure water has (a) maximum density (b) minimum volume?
Distinguish between a clinical and a laboratory thermometer.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Thermal expansion is always a nuisance.
How solids are expanded on heating?
