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Question 13.On which of the following property of the body, the coefficient of thermal expansion depends?(a) Shape(b) Size(c) Temperature(d) P.E. curve

Question

Question 13.

On which of the following property of the body, the coefficient of thermal expansion depends?
(a) Shape
(b) Size
(c) Temperature
(d) P.E. curve

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Solution

The coefficient of thermal expansion depends on the property (c) Temperature of the body.

Here's why:

Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically, it measures the fractional change in size per degree change in temperature at a constant pressure.

The coefficient of thermal expansion typically varies with temperature, so (c) Temperature is the correct answer. The shape and size of an object do not affect its coefficient of thermal expansion. The P.E. curve or potential energy curve is not related to thermal expansion.

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