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

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

A

`1/(54pi)cm//min`

B

`5/(6pi)cm//min`

C

`1/(36pi)cm//min`

D

`1/(18pi)cm//min`

Text Solution

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The correct Answer is:
D
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