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If a metallic circular plate of radius 5...

If a metallic circular plate of radius 50 cm is heated s that its radius increases at the rate of 1 mm per hour, then the rate at which, the area of the plate increases `("in" cm^(2)// "hour")` is

A

`5pi`

B

`10pi`

C

`100pi`

D

`50pi`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-RATE MEASUREMENT-PRACTICE SHEET (EXERCISE - 1) (LEVEL - 1) (STRAIGHT OBJECTIVE TYPE QUESTION)
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