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JEE MATHEMATICS MCQ: RATE MEASURE

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If the surface area of a sphere of radius

r

is increasing uniformly at the rate

8 \mathrm{~cm}^2 / \mathrm{s}

, then the rate of change of its volume is :

View answer and explanation

Correct option: D

proportional to

r

Option D (proportional to

r

) is correct because the rate of change of volume is directly proportional to the radius

r

of the sphere.

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