Home
Class 12
PHYSICS
A solid sphere falls with a terminal vel...

A solid sphere falls with a terminal velocity of `20 ms^-1` in air. If it is allowed to fall in vacuum

A

Terminal velocity will be 20 m/s

B

Terminal velocity will be less than 20 m/s

C

Terminal velocity will be greater than 20 m/s

D

No terminal velocity will be attained

Text Solution

Verified by Experts

The correct Answer is:
D

No terminal velocity will be attained as there is no air drag.
Promotional Banner

Topper's Solved these Questions

  • LIQUIDS

    VMC MODULES ENGLISH|Exercise JEE MAIN (LEVEL - 1 )|31 Videos
  • LIQUIDS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (LEVEL -2)|55 Videos
  • LIQUIDS

    VMC MODULES ENGLISH|Exercise LEVEL -1|90 Videos
  • LAWS OF MOTION

    VMC MODULES ENGLISH|Exercise IMPECCABLE|53 Videos
  • MAGNETIC EFFECTS OF CURRENT

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|78 Videos

Similar Questions

Explore conceptually related problems

A solid sphere falls with a terminal velocity of 10 m//s in air. If it is allowed to fall in vacuum.

A solid sphere falls with a terminal velocity v in air .If it is allowed to fall in vaccum,

A metal ball falls through water with terminal velocity 20 ms^(-1) . When the ball is allowed to fall through vacuum, then

A solid sphere moves at a terminal velocity of 20ms^-1 in air at a place where g=9.8ms^-2 . The sphere is taken in a gravity free hall having air at the same pressure and pushed down at a speed of 20 ms^-1

A viscous force of 1.018 xx 10^(-7) N acting on a raindrop makes it fall through air with a terminal velocity of 1 ms^(-1) . If the viscosity of air is 0.018 xx 10^(-3) PI, what is the radius of the raindrop? Hint : Stokes' law

Eight drops of water, each of radius 2mm are falling through air at a terminal velcity of 8cms^-1 . If they coalesce to form a single drop, then the terminal velocity of combined drop will be

Eight equal drops of water are falling through air with a steady velocity of 10 cms^(-1) . If the drops combine to form a single drop big in size, then the terminal velocity of this big drop is

A tiny spherical oil drop carrying a net charge q is balanced in still air with a vertical uniform electric field of strength (81pi)/(7)xx10^5Vm^-1 . When the field is switched off, the drop is observed to fall with terminal velocity 2xx10^-3ms^-1 . Given g=9.8ms^-2 , viscoisty of the air =1.8xx10^-5Nsm^-2 and the denisty of oil =900kg m^-3 , the magnitude of q is

n drops of water, each of radius 2 mm , fall through air at a terminal velocity of 8 cms^(-1) If they coalesce to form a single drop, then the terminal velocity of the combined drop is 32 cms^(-1) The value of n is

Velocity of sound in air is 332 ms^-1 . Its velocity in vacuum will be

VMC MODULES ENGLISH-LIQUIDS-LEVEL -2
  1. A thin square plate of side 5 cm is suspended vertically a balance so ...

    Text Solution

    |

  2. A needle of length l and density rho will float on a liquid of surf...

    Text Solution

    |

  3. Water rises to a height of 16.3 cm in a capillary of height 18 cm abov...

    Text Solution

    |

  4. In a surface tension experiment with a capillary tube water rises upto...

    Text Solution

    |

  5. A glass rod of radius 1 mm is inserted symmetrically into a glass capi...

    Text Solution

    |

  6. A small drop of water of surface tension sigma is squeezed betwee...

    Text Solution

    |

  7. A hollow sphere has a small hole in it. On lowering the sphere in a ta...

    Text Solution

    |

  8. A vertical glass capillary tube, open at both ends, contains some wate...

    Text Solution

    |

  9. MATCH THE FOLLOWING:

    Text Solution

    |

  10. A circular flexible loop of wire of radius r carrying a current I is p...

    Text Solution

    |

  11. When a liquid flows in a tube, there is relative motion between adjace...

    Text Solution

    |

  12. When a liquid flows in a tube, there is relative motion between adjace...

    Text Solution

    |

  13. When a liquid flows in a tube, there is relative motion between adjace...

    Text Solution

    |

  14. A raindrop reaching the ground with terminal velocity has momentum p. ...

    Text Solution

    |

  15. A solid sphere falls with a terminal velocity of 20 ms^-1 in air. If i...

    Text Solution

    |

  16. A marble of mass x and diameter 2r is gently released in a tall cylind...

    Text Solution

    |

  17. Two capillary tubes of the same length but different radii r(1) " and ...

    Text Solution

    |

  18. Viscous force is somewhat like friction as it opposes the motion and i...

    Text Solution

    |

  19. A thin plate AB of large area A is placed symmetrically in a small gap...

    Text Solution

    |

  20. A ball rises to the surface of a liquid with constant velocity. The de...

    Text Solution

    |