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Water is poured into an inverted cone of...

Water is poured into an inverted cone of semi-vertical angle `30^(@)` at the rate of `2 cu.ft//min`.When the depth of water in the cone is 1 foot, the surface of water in the cone is rising at the rate of

A

`(pi)/(6) ft. //min`.

B

`(6)/(pi) ft.//min`.

C

`6 pi ft.//min`

D

`(2)/(pi) ft. //min`.

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The correct Answer is:
B
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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