Home
Class 12
PHYSICS
A metal ball falls through water with te...

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

A

Terminal velocity is 30 `ms^(-1)`

B

Terminal velocity is 20 `ms^(-1)`

C

Terminal velocity is 15 `ms^(-1)`

D

There is no terminal velocity

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE|Exercise SECTION - B|23 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE|Exercise SECTION - C|15 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE|Exercise TRY YOURSELF|41 Videos
  • MAGNETISM AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D)|26 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE|Exercise Assignment(Section-D)|12 Videos

Similar Questions

Explore conceptually related problems

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

A solid sphere falls with a terminal velocity of 32 m/s in air . If it is allowed to fall in vacuum, then

A spherical ball falls through viscous medium with terminal velocity v . If this ball is replaced by another ball of the same mass but half the radius, then the terminal velocity will be (neglect the effect of buoyancy.)

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 CO_(2) gas. If its 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 steel ball falls slowly through water than through air because

Twenty seven similar mercury drops are falling through water with terminal velocity 4 cm/s. If the drops combine to form a single drop, then terminal velocity of this bigger drop in water will be

A solid sphere falls with a terminal velocity v in air, if it is allowed to fall in vacuum. Its terminal speed

Sixty four spherical rain drops of equal size are falling vertically through air with a terminal velocity 1.5ms^(-1) . If these drops coalesce to form a big spherical drop, then terminal velocity of big drop is:

AAKASH INSTITUTE-MECHANICAL PROPERTIES OF FLUIDS-SECTION - A
  1. Twenty seven identical rain drops colaese to form a big rain drop. If ...

    Text Solution

    |

  2. The coefficient of viscosity for hot air is

    Text Solution

    |

  3. Water flows through a frictionless tube with a varying cross-section a...

    Text Solution

    |

  4. A metal ball falls through water with terminal velocity 20 ms^(-1). Wh...

    Text Solution

    |

  5. Water flows at a speed 5 cm s^(-1) through a pipe of radius 2 cm. The ...

    Text Solution

    |

  6. The Reynolds number of a flow is the ratio of

    Text Solution

    |

  7. When stirred with a spoon and left, water comes to rest after some tim...

    Text Solution

    |

  8. In the absence of any external force, liquid drop are sperical in shap...

    Text Solution

    |

  9. The excess energy possessed by molecules at the free surface of a liqu...

    Text Solution

    |

  10. The amount of work done in blowing up a soap bubble of radius 2 cm is ...

    Text Solution

    |

  11. The excess pressure inside a liquid drop of water will be maximum for ...

    Text Solution

    |

  12. A liquid does not wet a solid surface if the angle of contact for the ...

    Text Solution

    |

  13. Adding detergents to the water increases its

    Text Solution

    |

  14. Water rises to a height h when a capillary of radius r is dipped in wa...

    Text Solution

    |

  15. The angle of contact of a liquid in a capillary tube is 60^(@). The sh...

    Text Solution

    |

  16. A spherical drop of water has 2.5 mm radius. If the surface tension of...

    Text Solution

    |

  17. Two water droplets merge with each other to from a larger droplet. In ...

    Text Solution

    |

  18. To what height does a liquid of density 0.4 xx 10^(3) kg m^(-3) and su...

    Text Solution

    |

  19. The pressure inside an air bubble of radius 2 cm formed 20 cm below an...

    Text Solution

    |

  20. The minimum force required to separate a light glass plate of perimete...

    Text Solution

    |