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प्रश्न
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उत्तर
Take a ball and ring apparatus as shown in figure. At room temperature, the ball can just pass through the ring. Now heat the ball over a flame and try to pass it through the ring. You will find that the ball when heated is not able to pass through the ring. The diameter of the ball increases when the ball is heated. This shows the expansion of solid on heating.
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संबंधित प्रश्न
Iron rims are heated before they are fixed on the wooden wheels.
A metal plate is heated. State three factors on which the increase in its area will depend.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
What is the velocity of thermal radiations?
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Borosilicate glass do not expand much on being heated.
The expansion in volume is called linear expansion.
