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JEE MATHEMATICS MCQ: RATE MEASURE

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A spherical iron ball of 10 cm radius is coated with a layer of ice of uniform thickness that melts at a rate of

50\,c{m^3}/\min .

When the thickness of ice is 5 cm, then the rate (in cm / min) at which of the thickness of ice decreases, is

View answer and explanation

Correct option: D

\frac{1}{{18\pi }}

Option D (

\frac{1}{{18\pi }}

) is correct because it is the rate at which the thickness of the ice decreases when the thickness is 5 cm, calculated using related rates.

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