Advertisements
Advertisements
प्रश्न
What is thermal expansion?
Advertisements
उत्तर
The expansion of a substance on heating is called thermal expansion.
APPEARS IN
संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
An iron washer is heated. State the effect on its external.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
What is meant by thermal expansion?
What are the different types of thermal expansions?
Give reasons for the following:
In cold countries, water pipes burst in winter.
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.
Thermal expansion is always a nuisance.
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
