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प्रश्न
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उत्तर
If the Coefficient of Linear expansion is denoted by α
Coefficient of superficial expansion is denoted by β
And Coefficient of volume expansion is denoted by γ
Then the relation between α, β and γ is stated as
β = 2 α and γ = 3 α
α : β : γ : : 1 : 2 : 3
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संबंधित प्रश्न
What is matter? What is it composed of?
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?
State one application of thermal expansion of liquids.
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.
Water is heated from 0°C to 4°C. Will it expand?
An iron washer is heated. State the effect on its internal diameter.
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.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
