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JEE MATHEMATICS MCQ: RATE MEASURE

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The radius of a sphere is changing at the rate of

0.1 \mathrm{~cm} / \mathrm{sec}

. The rate of change of its surface area when the radius is

200 \mathrm{~cm}

is

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Correct option: C

160 \pi \mathrm{cm}^2 / \mathrm{sec}

Option C (

160 \pi \mathrm{cm}^2 / \mathrm{sec}

) is correct because it is the rate of change of the surface area of the sphere, calculated using related rates.

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