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A spherical iron ball 10 cm in radius is...

A spherical iron ball 10 cm in radius is coated with a layer of ice of uniform thickness that melts at a rate of `50 cm^(3)//min.` When the thickness of ice is 5 cm, then the rate at which the thickness of ice decreases, is:

A

`(5)/(6pi)`

B

`(1)/(54pi)`

C

`(1)/(36pi)`

D

`(1)/(18pi)`

Text Solution

Verified by Experts

The correct Answer is:
D
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