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प्रश्न
Borosilicate glass do not expand much on being heated.
विकल्प
True
False
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उत्तर
Borosilicate glass do not expand much on being heated- True.
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संबंधित प्रश्न
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
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.
An iron washer is heated. State the effect on its internal diameter.
Define the following term:
Coefficient of superficial expansion
Give reasons for the following:
Telephone wires sag in summer.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
The expansion in volume is called linear expansion.
