Home
Class 12
PHYSICS
The speed of a ball of radius 2 cm in a ...

The speed of a ball of radius 2 cm in a viscous liquid is 20 cm/s. Then the speed of ball of radius I cm in the same liquid is

A

`5 cm s^(-1)`

B

`10 cm s^(-1)`

C

`40 cm s^(-1)`

D

`80 cm s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 29

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET SET 31

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The speed ofa ball ofradius 2 cm in a viscous liquid is 20 cm/s. Then the speed of ball of radius I cm in the same liquid is

Uniform speed of 2 cm diameter ball is 20cm//s in a viscous liquid. Then, the speed of 1 cm diameter ball in the same liquid is

A steel ball of mass m falls in a viscous liquid with terminal velocity v, then the steel ball of mass 8m will fall in the same liquid with terminal velocity

A steel ball of radius 2 cm is initially at rest. It is struck head on by another stell ball of radius 4 cm travelling with a velocity of 81 cm//s . The common velocity if it is perfectly inelastic collision.

A steel ball of radius 2 cm is initially at rest. It is struck head on by another stell ball of radius 4 cm travelling with a velocity of 81 cm//s . If the collision is elastic their respective final velocities are

A steel ball of radius 2 cm is at rest on a frictionless surface. Another ball of radius 4 cm moving at a velocity of 81 cm//see collides elast cally with first ball. After collision the smaller ball moves with speed of

How many balls, each of radius 1 cm, can be made from a solid sphere of lead of radius 8 cm?

A solid metal ball of radius 8 cm is melted and cast into smaller balls, each of radius 2 cm. The number of such balls is

NTA MOCK TESTS-NTA NEET SET 30-PHYSICS
  1. Two bodies P and Q of equal masses are suspended from two separate mas...

    Text Solution

    |

  2. Two simple harmonic are represented by the equation y(1)=0.1 sin (100p...

    Text Solution

    |

  3. When a metallic surface is illuminated with monochromatic light of wav...

    Text Solution

    |

  4. The work function of a surface of a photosensitive material is 6.2 eV...

    Text Solution

    |

  5. Water rises in a vertical capillary tube up to a height of 2.0 cm. If ...

    Text Solution

    |

  6. The speed of a ball of radius 2 cm in a viscous liquid is 20 cm/s. The...

    Text Solution

    |

  7. Two plane mirrors are placed at some angle. There are five images form...

    Text Solution

    |

  8. The graph in Fig. shows how the inverse of magnification 1//m produced...

    Text Solution

    |

  9. A bullet of mass m hits a block of mass M. The transfer of energy is m...

    Text Solution

    |

  10. A thin uniform circular disc of mass M and radius R is rotating in a h...

    Text Solution

    |

  11. A silicon diode has a threshold voltage of 0.7 V. If an input voltage ...

    Text Solution

    |

  12. The output A when all three inputs are first high and then low respect...

    Text Solution

    |

  13. In the following circuit of PN junction diodes D1, D2 and D3 are ideal...

    Text Solution

    |

  14. The molecules of a given mass of gas have an rms velocity of 200 ms(-1...

    Text Solution

    |

  15. Water falls from a height 500m, what is the rise in temperature of wat...

    Text Solution

    |

  16. The frequency f of vibrations of a mass m suspended from a spring of s...

    Text Solution

    |

  17. The I^(st) diffraction minimum due to single slit diffraction is theta...

    Text Solution

    |

  18. A clear sheet of polaroid is placed on the top of similar sheet so tha...

    Text Solution

    |

  19. If velocity of a galaxy relative to earth is 1.2 xx 10^(6)ms^(-2) then...

    Text Solution

    |

  20. The displacement x of a body of mass 1 kg on a horizontal smooth surfa...

    Text Solution

    |