Home
Class 12
PHYSICS
Cadmium and Boron rods are used in a nuc...

Cadmium and Boron rods are used in a nuclear reactor to

A

Slow down the neutrons

B

Absorb.excess number of thermal neutrons

C

speed up neutrons

D

absorb fast neutrons

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    AAKASH SERIES|Exercise Exercise-II|40 Videos

  • NUCLEI

    AAKASH SERIES|Exercise Practice Exercise|40 Videos

  • NUCLEI

    AAKASH SERIES|Exercise Practice Exercise|40 Videos

  • NUCLEAR PHYSICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE PRACTICE SHEET (ADVANCED) Integer Type Questions|4 Videos

  • OPTICAL INSTRUMENTS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE -I) (OPTICAL INSTRUMENTS) (LEVEL-I (MAIN)) (SUBJECTIVE OBJECTIVE TYPE QUESTIONS)|21 Videos

Similar Questions

Explore conceptually related problems

What is the role of controlling rods in a nuclear reactor ?

What is the function of moderator in a nuclear reactor ?

The Noble gas used in atomic reactors is

Heavy water is used as moderator in a nuclear reactor. The function of the moderator is

What useful to slow down neutrons produced by fission in a nuclear reaction?

How is boron-10 isotope used in nuclear chemistry ?

(A) Helium is used in gas cooled nuclear reactors (R) Helium has high thermal conductivity

AAKASH SERIES-NUCLEI-Exercise-I
  1. Chain reaction can be initiated by

    Text Solution

    |

  2. At a specific instant, the emission of radio active compound is deflec...

    Text Solution

    |

  3. Cadmium and Boron rods are used in a nuclear reactor to

    Text Solution

    |

  4. Heavy water is used as moderator in a nuclear reactor. The function of...

    Text Solution

    |

  5. In fission of U-235, the percentage of mass converted into energy is a...

    Text Solution

    |

  6. The reactor in which the number of fissionable nuclides produced are m...

    Text Solution

    |

  7. A nucleus with z= 92 units emits the following in a sequence. alpha,...

    Text Solution

    |

  8. To sustain the chain reaction, the mass of the material should be

    Text Solution

    |

  9. Nuclear fission can be explained by

    Text Solution

    |

  10. The operation of a nuciear reactor is said to be critical, if the mult...

    Text Solution

    |

  11. The main source of sun.s energy is

    Text Solution

    |

  12. Fusion reaction take place at high temperature because

    Text Solution

    |

  13. Nuclear fusion is possible

    Text Solution

    |

  14. In sun, the important source of energy is,

    Text Solution

    |

  15. In carbon-nitrogen nuclear fusion cycle, protons are fused to form a h...

    Text Solution

    |

  16. When two deuterium nuclei fuse together to form a tritium nuclei, we g...

    Text Solution

    |

  17. Particles and their anti-particles have,

    Text Solution

    |

  18. The particles that possesses half integral spin is

    Text Solution

    |

  19. The half life period of the radioactive is .15P^30 is

    Text Solution

    |

  20. In gamma ray emission from a nucleus

    Text Solution

    |