Home
Class 11
PHYSICS
The critical mass of a fissionable mater...

The critical mass of a fissionable material is

A

75 kg

B

1kg

C

20 kg

D

10 kg

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION AND FRICTION

    RESONANCE|Exercise Exercise|56 Videos

  • PART TEST 1

    RESONANCE|Exercise Exercise|30 Videos

Similar Questions

Explore conceptually related problems

The critical mass of a fissionable uranium -235 can be reduced by

The reactor which produces power due to fission by fast neutron and at the same time regenerates more fissionable material than it consumes is

As shown in Fig. PQ is a ray incident on prism ABC . Show the corresponding refracted and emergent rays. The critical angle for the material of the prism is 45^@ . What is refractive index of the material of prism ? .

The critical speed of a satellite of mass 500 kg is 20 m/s. What is the critical speed of a satellite of mass 1000 kg moving in the same orbit ?

A ray of light is incident on a prism of refracting angle A. if theta_(C) is the critical angle for the material of the prism with respect to the surrounding air, then:

RESONANCE-NUCLEAR PHYSICS-Exercise
  1. The binding energies of two nuclei P^n and Q^(2n) and x and y joules. ...

    Text Solution

    |

  2. In fission,the percentage of mass converted into energy is about

    Text Solution

    |

  3. The critical mass of a fissionable material is

    Text Solution

    |

  4. One requires energy En to remove a nucleon from a nucleus and an energ...

    Text Solution

    |

  5. Amount of TNT equivalent of energy obtained from fission of 1gm U^235 ...

    Text Solution

    |

  6. 10^14 fissions per second are taking place in a nuclear reactor having...

    Text Solution

    |

  7. Slow neutron are sometimes refer to as thermal neutrons because

    Text Solution

    |

  8. Which of the following is not correct about nuclear forces?

    Text Solution

    |

  9. The graph between the binding energy per nucleon (E) and atomic mass n...

    Text Solution

    |

  10. In most stable nuclei neutron number N and proton number Z has the rel...

    Text Solution

    |

  11. The probability of a radioactive atoms to survive 5 times longer than ...

    Text Solution

    |

  12. After emission of an alpha-particle by a radiative element .(84)X^(212...

    Text Solution

    |

  13. The SI unit of activity is-

    Text Solution

    |

  14. The specific activity of radius is nearly-

    Text Solution

    |

  15. After a time equal to four half lives, the amount of radioactive mater...

    Text Solution

    |

  16. The mean of life of a radioactive sample is 100 years. Then after 100 ...

    Text Solution

    |

  17. The count rate of 10 g of radioactive material was measured at differe...

    Text Solution

    |

  18. How many atoms decay in one mean life time of a radioactive sample-

    Text Solution

    |

  19. The half life of radioactive substance is T. Then the fraction of the ...

    Text Solution

    |

  20. The half-life of a radioactive substance is 3h and its activity is 1mu...

    Text Solution

    |