Home
Class 12
PHYSICS
For a radioactive material , half-life i...

For a radioactive material , half-life is 10 minutes . If initially there are 600 number of nuclei , the time taken (in minutes ) for the disintegration of 450 nuclei is

A

30

B

10

C

20

D

15

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RADIOACTIVITY & NUCLEAR PHYSICS

    MOTION|Exercise Exercise-2|24 Videos
  • PROJECTILE MOTION

    MOTION|Exercise EXERCISE-3 (SECTION-B)|8 Videos
  • RAY OPTICS

    MOTION|Exercise Exercise-4|38 Videos
MOTION-RADIOACTIVITY & NUCLEAR PHYSICS-Exercise-3
  1. Radioactive material 'A' has decay constant '8 lamda' and material 'B'...

    Text Solution

    |

  2. Two radioactive X(1) and X(2) have decay constants 10 lambda and lamb...

    Text Solution

    |

  3. For a radioactive material , half-life is 10 minutes . If initially th...

    Text Solution

    |

  4. If N(0) is the original mass of the substance of half - life period t(...

    Text Solution

    |

  5. At a specific instant emission of radioactive compound is deflected in...

    Text Solution

    |

  6. In the nuclear fusion reaction (1)^(2)H + (1)^(3)H rarr (2)^(4)He + ...

    Text Solution

    |

  7. A radioactive sample at any instant has its disintegration rate 5000 d...

    Text Solution

    |

  8. Which of the following cannot be emitted by radioactive substances dur...

    Text Solution

    |

  9. Which of the following radiation has the least wavelength ?

    Text Solution

    |

  10. which a U^(238) nucleus original at rest , decay by emitting an alpha ...

    Text Solution

    |

  11. A nucleus with Z =92 emits the following in a sequence: alpha,beta^(...

    Text Solution

    |

  12. A nucleus desintegrated into two nucleus which have their velocities i...

    Text Solution

    |

  13. The binding energy per nucleon of deuterium and helium nuclei are 1.1 ...

    Text Solution

    |

  14. If radius of the .(13)^(27)Al nucleus is estimated to be 3.6 Fermi, th...

    Text Solution

    |

  15. A nuclear transformation is denoted by X(n,alpha) rarr. (3)^(7)Li. Whi...

    Text Solution

    |

  16. The intensity of gamma radiation from a given source is I On passing...

    Text Solution

    |

  17. Starting with a sample of pure .^(66)Cu, 7//8 of it decays into Zn in ...

    Text Solution

    |

  18. When (3)Li^(7) nuclei are bombarded by protons , and the resultant nuc...

    Text Solution

    |

  19. An alpha nucleus of energy (1)/(2)m nu^(2) bombards a heavy nucleus o...

    Text Solution

    |

  20. If the binding energy per nucleon in .(3)^(7)Li and .(2)^(4)He nuclei ...

    Text Solution

    |