JEE MainMathematicsApplication of DerivativesMCQ+4 / −1
A spherical iron ball of 10 cm radius is coated with a layer of ice of uniform thickness the melts at a rate of 50 cm3/min. When the thickness of ice is 5 cm, then the rate (in cm/min.) at which of the thickness of ice decreases, is :
- A
- B
- C
- D
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