Home
Class 12
MATHS
The radius of a right circular cylinder ...

The radius of a right circular cylinder increases at a constant rate . Its altitude is a linear function of the radius and increases three times as fast as radius . When the radius is 1 cm the altitude is 6 cm. When the radius is 6 cm , the volume is increasing at the rate of ` 1 cm^(3)/s` . When the radius is 36 cm, the volume is increasing at a rate of n cm/s . The value of 'n' is equal to

A

12

B

22

C

30

D

33

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • APPLICATION OF DERIVATIVES

    AAKASH INSTITUTE|Exercise Assignment SECTION-B( Objective Type Questions ( One option is correct ))|31 Videos
  • APPLICATION OF DERIVATIVES

    AAKASH INSTITUTE|Exercise Assignment SECTION-C( Objective Type Questions ( More than one option are correct ))|1 Videos
  • APPLICATION OF DERIVATIVES

    AAKASH INSTITUTE|Exercise TRY YOURSELF|39 Videos
  • APPLICATION OF INTEGRALS

    AAKASH INSTITUTE|Exercise Assignment Section - I Aakash Challengers Questions|2 Videos

Similar Questions

Explore conceptually related problems

The radius of a right circular cyliner increases at a constant rate. Its altitude is a linear function of radius and increases three times as fast as radius. When the radius is 1 cm the altitude is 6 cm radius is 6cm, the volume is increasing at the rate of 1 Cu.cm/sec. When the radius is 36 cm Volume is increasing at a rate of n cu. cm/sec. The value of 'n' is divisible by

If the volume of sphere changes at the rate of 140 cm^(3)//sec, then, when the radius is 70 cm, its surface area is increasing at the rate of

The diameter of a circle is increasing at the rate of 1 cm/sec. When its radius is pi , the rate of increase of its area, is

If the area of a circle changes at the rate of 2pi cm^(2)//sec , then, when the radius is 10cm, the radius is changing at the rate of

Area of circular blot of ink is increasing at the rate of 2cm^(2)//sec. When the area of the blot is 4cm^(2), its radius is increasing at the rate of

If the radius of a circle is 2 cm and is increasing at the rate of 0.5 cm/sec., then the rate of increase of its area is

If the radius of a circle changes at the rate of 0. 2 cm//sec , then , when the radius is 20 cm, its area changes at the rate of

The radius of a right circular cylinder increases at the rate of 0.2 cm/sec and the height decreases at the rate of 0.1 cm/sec. The rate of change of the volume of the cylinder when the radius is 1 cm and the height is 2 cm is

The surface area of a spherical bubble is increasing at the rate of 2cm^(2)/s. When the radius of the bubble is 6cm at what rate is the volume of the bubble increasing?

AAKASH INSTITUTE-APPLICATION OF DERIVATIVES-Assignment SECTION-A (Competition Level Questions)
  1. The least area of a circle circumscribing any right triangle of area S...

    Text Solution

    |

  2. If f(x)=x(1-x)^(3) then which of following is true ?

    Text Solution

    |

  3. A function y=f(x) is given by x=1/(1+t^2) and y=1/(t(1+t^2)) for all t...

    Text Solution

    |

  4. The point on the curve y^(2)=x where tangent makes 45^(@) angle with x...

    Text Solution

    |

  5. The radius of a right circular cylinder increases at a constant rate ....

    Text Solution

    |

  6. Two sides of a triangle are to have lengths 'a'cm & 'b'cm. If the tria...

    Text Solution

    |

  7. The cost function at American Gadget is C(x)=x^(3)-6x^(2)+15x (x is t...

    Text Solution

    |

  8. A particle moves along the curve y=x^(3/2) in the first quadrant in su...

    Text Solution

    |

  9. Let f(x)=ax^(2)-b|x| , where a and b are constant . Then at x=0 , f(x)...

    Text Solution

    |

  10. Find the point on the curve 9y^2=x^3, where the normal to the curve ma...

    Text Solution

    |

  11. The angle made by any tangent to the curve x=a(t+sintcost) , y=(1+sint...

    Text Solution

    |

  12. A cube of ice melts without changing its shape at the uniform rate ...

    Text Solution

    |

  13. Consider the curve represented parametrically by the equation x = t^3-...

    Text Solution

    |

  14. The point on the curve y=6x-x^(2) where the tangent is parallel to x-a...

    Text Solution

    |

  15. For the curve y=3sinthetacostheta, x=e^(theta)sintheta, 0lt=thetalt=p...

    Text Solution

    |

  16. The slope of normal to the curve x^(3)=8a^(2)y, a gt 0 at a point in ...

    Text Solution

    |

  17. The normal to the curve x=a(cos theta + theta sin theta), y=a(sin thet...

    Text Solution

    |

  18. The equation of tangent to the curve x=a cos^(3)t ,y=a sin^(3) t at ...

    Text Solution

    |

  19. For the curve x = t^2 - 1, y = t^2 - t, the tangent line is perpendicu...

    Text Solution

    |

  20. For the function f(x)=x^(2)-6x+8, 2 le x le 4 , the value of x for whi...

    Text Solution

    |