Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
- If I heat a circular disk with a hole the diameter of the hole will increase.
- Because thermal expansion takes place when we heat the disk.
APPEARS IN
संबंधित प्रश्न
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
Two identical rods of copper are heated to different temperatures — one by 5°C and the other by 10°C. Which rod will expand more?
An iron washer is heated. State the effect on its mass.
An iron washer is heated. State the effect on its external.
Give reasons for the following:
In cold countries, water pipes burst in winter.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Give reason for the following
An ordinary glass bottle cracks when boiling water is poured into it, but a borosilicate glass bottle does not.
