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प्रश्न
Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more?
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उत्तर
Lt – L0 ∝ L0
∴ The rod having greater length will expand more when rods are heated to the same temperature.
∴ Rod with 10 m length will expand more.
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संबंधित प्रश्न
What do you understand by thermal expansion of a substance?
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?
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.
An iron washer is heated. State the effect on its external.
Define the following term:
Coefficient of superficial expansion
Define the following term:
Coefficient of cubical expansion
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.
The expansion in volume is called linear expansion.
