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प्रश्न
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संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same 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?
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.
Describe an experiment to showthat air expands on heating.
Define the following term:
Coefficient of cubical expansion
Give reasons for the following:
Telephone wires sag in summer.
Complete the following sentence:
When ice melts its volume ______ and density _______.
Give reason for the following
An ordinary glass bottle cracks when boiling water is poured into it, but a borosilicate glass bottle does not.
Analogy:
Expansion is length:: Linear expansion.
Expansion in volume:: ______.
