Home
Class 11
PHYSICS
Two bodies of masses 2 m and m have thei...

Two bodies of masses 2 m and m have their K.E. in the ratio 8 : 1, then their ratio of momenta is

A

`1:1`

B

`2:1`

C

`4:1`

D

`8:1`

Text Solution

Verified by Experts

The correct Answer is:
C

`p=sqrt(2mE)therefore (p_(1))/(p_(2))=sqrt((m_(1))/(m_(2))(E_(1))/(E_(2)))=sqrt((2)/(1)xx(8)/(1))=(4)/(1)`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) (Power)|31 Videos
  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) (Elastic and Inelastic Collision)|68 Videos
  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) (Work Done by Variable Force)|26 Videos
  • WAVES AND SOUND

    ERRORLESS |Exercise SET|25 Videos
  • WORK, ENERGY, POWER & COLLISION

    ERRORLESS |Exercise Assertion|30 Videos
ERRORLESS -WORK , ENERGY , POWER AND COLLISION-Ordinary Thinking (Objective Questions) (Conservation of Energy and Momentum)
  1. Assertion : A bullet is fired from a rifle. If the rifle recoils fre...

    Text Solution

    |

  2. If the water falls from a dam into a turbine wheel 19.6 m below, then...

    Text Solution

    |

  3. Two bodies of masses 2 m and m have their K.E. in the ratio 8 : 1, the...

    Text Solution

    |

  4. A bomb of 12 kg divides in two parts whose ratio of masses is 1 : 3. I...

    Text Solution

    |

  5. A 4 kg mass and a 1 kg mass are moving with equal kinetic energies. Th...

    Text Solution

    |

  6. Two identical cylindrical vessels with their bases at the same level e...

    Text Solution

    |

  7. If the increase in the kinetic energy of a body is 21%, then the incre...

    Text Solution

    |

  8. If a body of mass 200 g falls a height 200 m and its total P.E. is con...

    Text Solution

    |

  9. If momentum is increased by 20% then K.E. increases by

    Text Solution

    |

  10. The kinetic energy of a body of mass 2 kg and momentum of 2 Ns is

    Text Solution

    |

  11. The decrease in the potential energy of a ball of mass 20 kg which fal...

    Text Solution

    |

  12. An object of 1kg mass has a momentum of 10 kg m / sec then the kinetic...

    Text Solution

    |

  13. A ball is released from certain height. It loses 50% of its kinetic en...

    Text Solution

    |

  14. A 0.5 kg ball is thrown up with an initial speed 14 m/s and reaches a ...

    Text Solution

    |

  15. An ice cream has a marked value of 700 kcal. How may kilowatt-hour of ...

    Text Solution

    |

  16. What is the velocity of the bob of a simple pendulum at its mean posit...

    Text Solution

    |

  17. A particle of mass 'm' and charge 'q' is accelerated through a potenti...

    Text Solution

    |

  18. A man who is running has half the kinetic energy of a boy of half his ...

    Text Solution

    |

  19. The mass of two substance are 4 gm and 9 gm respectively. If their kin...

    Text Solution

    |

  20. If the momentum of a body is increased by 100%, then the percentage in...

    Text Solution

    |