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Introduction to Thermal Expansion

5 MinsPhysics
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Important Questions

A hole is drilled in a copper sheet.  The diameter of the hole is 4.24 cm at . What is the change in the diameter of the hole when the sheet is heated to ? Coefficient  of the linear expansion of copper

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Two rods of length and are made of materials whose coefficients of linear expansion are and . If the difference between their lengths is independent of temperature, then :

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The coefficient of volume expansion of glycerine is . What is the fractional change in its density for a rise in temperature?

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A beaker is completely filled with water at . It will overflow if

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The density of a substance at is 10 g/cc and at , its density is 9.7 g/cc. The coefficient of volume expansion of the substance is 

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If a cylinder of diameter 1.0 cm at is to be slid into a hole of diameter 0.9997 cm in a steel plate at the same temperature, the minimum required rise in the temperature of the plate is: (Coefficient of linear expansion of steel)

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The value of coefficient of volume expansion of glycerin is  The fractional change in the density of glycerin for a rise of in its temperature is:-

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The apparent coefficient of expansion of liquid when heated in a copper vessel is and when heated in a silver vessel is . If is the coefficient of  linear expansion of copper, coefficient of linear expansion of silver is :

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If the coefficient of cubical expansion is times of the coefficient of superficial expansion, then value of is

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If two rods of length and having coefficients of linear expansion and respectively are connected so that total length becomes , the average coefficient of liner expansion of the composition rod equals:

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