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An iron ball having 10 cm radius is cove...

An iron ball having 10 cm radius is covered equally with Ice. Ice is melted at the rate of 50 `cm^(3)`/min. when the thickness of ice is 5 cm, rate of decrease in radius is ………….. cm/min.

A

`(1)/(36 pi)`

B

`(1)/(18pi)`

C

`(1)/(54 pi)`

D

`(5)/(6pi)`

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-APPLICATION OF DERIVATIVES -TEXTBOOK BASED MCQS
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