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प्रश्न
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
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उत्तर
The diagram is to show how the given strip bends and cools. Due to heating, the copper bends more than invar due to the high coefficient of linear expansion of copper.
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संबंधित प्रश्न
State one application of thermal expansion of liquids.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Define the following term:
Coefficient of cubical expansion
Give reasons for the following:
Telephone wires sag in summer.
Explain thermal expansion with suitable examples.
When we cool the liquid it will become ______.
