Thermal expansion ? Write only its types.

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10-1.Thermometry, Thermal Expansion and Calorimetry

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What is thermal expansion ? Write only its types.

Option A

Option B

Option C

Option D

Solution

It is our common experience that most substances expand on heating and contract on cooling. A change in the temperature of a body causes change in its dimensions. The increase in the dimensions of a body due to the increase in its temperature is called thermal expansion. There are three types of thermal expansion :

$(a)$ Linear expansion : The expansion in length is called Linear expansion.

$(b)$ Area expansion : The expansion in area is called Area expansion.

$(c)$ Volume expansion : The expansion in volume is called Volume expansion.

All are shown in the figure as below.

Standard 11

Physics

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