Crey | The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal is α . The sphere is heated a little by a temperature ∆T so that its new temperature is T+ ∆T . The increase in the volume of the sphere is approximately 2π R α ∆T, π R² α ∆T, 4πR³α ∆T /3, 4πR³α ∆T

The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal is α . The sphere is heated a little by a temperature ∆T so that its new temperature is T+ ∆T . The increase in the volume of the sphere is approximately

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2π R α ∆T
π R² α ∆T
4πR³α ∆T /3
4πR³α ∆T

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The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal is α . The sphere is heated a little by a temperature ∆T so that its new temperature is T+ ∆T . The increase in the volume of the sphere is approximately

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