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The radius of an air bubble is increasin...

The radius of an air bubble is increasing at the rate of 0.2 cm/s. The rate of increase of its volume when the radius is 5 cm is

A

1) `5pi cm^3//s`

B

2) `pi cm^3//sc`

C

3) `20 pi cm ^3/s`

D

4) `12.5 cm^3//s`

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MODERN PUBLICATION-APPLICATION OF DERIVATIVES-EXERCISE
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  2. Which of the following functions are strictly decreasing on ( 0, pi/2 ...

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  3. The radius of an air bubble is increasing at the rate of 0.2 cm/s. The...

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  4. In [0,pi/2] the function f(x) = log sin x is

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  5. Which of the following function is always increasing?

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  6. The slope of the normal to the curve y =3x^2 +2 sin x at x =0 is

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  7. The radius of a circle is increasing at the rate of 0.14 cm/sec. The r...

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  8. Which of the following function is strictly decreasing in ( 0, pi/2) ?

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  9. The function f(x) = sin x + cos x has maxima or minima at x =

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  10. Find the rate of change of the area of a circle per second with respec...

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