The volume and surface area of a sphere, with radius r, is defined as - (1) and A(r)=4πr2Differentiating (1) with respect to t, we get=(Surface area of a sphere)×(rate of change of radius)

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Class 12th RD Sharma - Volume 1 13. Derivative as a Rate Measurer

Answer :

The volume and surface area of a sphere, with radius r, is defined as

- (1) and A(r)=4πr²

Differentiating (1) with respect to t, we get

=(Surface area of a sphere)×(rate of change of radius)

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