Home
Class 12
PHYSICS
What is meant by chain reaction ?...

What is meant by chain reaction ?

Text Solution

Verified by Experts

When neutron reproduction factor is equal to one, the size of fissionable material is equal to critical size and its mass is equal to critical mass.
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    MODERN PUBLICATION|Exercise REVISION EXERCISES (ADDITIONAL QUESTIONS CARRYING 1 MARK)|8 Videos

  • NUCLEI

    MODERN PUBLICATION|Exercise REVISION EXERCISES (FILL IN THE BLANKS)|10 Videos

  • NUCLEI

    MODERN PUBLICATION|Exercise HIGH ORDER THINKING SKILLS & ADVANCED LEVEL|9 Videos

  • MOVING CHARGES AND MAGNETISM

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|13 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|14 Videos

Similar Questions

Explore conceptually related problems

What is meant by specific reaction rate ?

What is meant by Food chain?

What is meant by a chemical reaction?

What is meant by a decomposition reaction ?

What is meant by a combination reaction ?

What is meant by a decomposition reaction?

MODERN PUBLICATION-NUCLEI-REVISION EXERCISES (VERY SHORT ANSWER QUESTIONS)
  1. Why alpha particles have high ionising power than beta rays?

    Text Solution

    |

  2. How do the mass number and atomic number change in alpha -decay? A nuc...

    Text Solution

    |

  3. What percentage of a radioactive substance will left undecayed after f...

    Text Solution

    |

  4. A radioactive nucleus decays by emitting one alpha and two beta partic...

    Text Solution

    |

  5. Why control rods are made up of cadmium?

    Text Solution

    |

  6. Why nuclear fusion is very difficult to carry out?

    Text Solution

    |

  7. Why nuclear fusion is also known as thermonuclear reaction?

    Text Solution

    |

  8. Write the relation between average life and decay constant of a radioa...

    Text Solution

    |

  9. When a beta^(-) particle is emitted from a nucleus, the neutrons-proto...

    Text Solution

    |

  10. The curve representing the energy spectrum of beta -particles is

    Text Solution

    |

  11. beta^(+) तथा beta^(-) क्षय क्रिया समझाइए |

    Text Solution

    |

  12. What is nuclear fission ? Given an example to illustrate it.

    Text Solution

    |

  13. What do you mean by nuclear fusion ?

    Text Solution

    |

  14. नाभिकीय श्रृंखला अभिक्रिया में न्यूट्रॉन गुणन कारक से क्या तात्पर्य है...

    Text Solution

    |

  15. What is meant by chain reaction ?

    Text Solution

    |

  16. What happens when neutron reproduction factor is greater than one?

    Text Solution

    |

  17. What is the role o f coolant in nuclear reactors?

    Text Solution

    |

  18. What do you mean by nuclear holocaust?

    Text Solution

    |

  19. In proton-proton cycle, what is the approximate energy released?

    Text Solution

    |

  20. Four nuclei of an elements undergo fusion to form a heavier nucles, w...

    Text Solution

    |