Question

The Radius of a metal sphere at room temperature T is R and the cofficient of linear expansion of metal is α .

The sphere heated a little by a temperature ΔT so that its new temperature is T + ΔT .
The increase in the volume of sphere is approximately - ?​

Answer 1

The radious of a metal sphere at room temperature T is R, and the coefficient of linar expansion of the metal is alpha. The sphere is heated a little by a temperature Delta T so that its new temperature is T+ Delta T.

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