Home
Class 12
CHEMISTRY
C^(14) has a half- life of 5760 years. 1...

`C^(14)` has a half`-` life of 5760 years. `100mg` of the sample containing `.^(14)C` is reduced to `25mg` in a)11520years b)2880years c)1440years d)17128years

A

11520 years

B

2880 years

C

1440 years

D

17280 years

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise OBJ - B|54 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise Assettion Reason|26 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise Problem Practices|44 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    OP TANDON|Exercise Single integer|8 Videos

  • SATURATED ALIPHATIC HYDROCARBONS

    OP TANDON|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|7 Videos

Similar Questions

Explore conceptually related problems

20 mg of C-14 has half-life of 5760 yr. 100 mg of sample containing C-14 is reduced to 25 mg in

The half life of radium is 1600 years. After how much time will 1 g radium be reduced to 125 mg ?

The half life of radium (226) is 1620 years. The time takend to convert 10 g of radium to 1.25 g is a. 810 years b. 1620 years c. 3240 years d. 4860 years

Tritium has a half-life of 12.5 years. What fraction of the sample will remain undecayed after 50 years?

Half - life for radioactive .^(14)C is 5760 years. In how many years 200 mg of .^(14)C will be reduced to 25 mg ?

The isotope ._6^(14)C is radioactive and has a half-life of 5730 years . If you starts with a sample of 1000 carbon -14 niclei, how many will still be around in 17,190 years ?

OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -OBJ - A
  1. Radium has atomic weight 226 and a half-life of 1600 Yr. The number of...

    Text Solution

    |

  2. A radioactive sample has a half life 1500 years. A sealed tube conatai...

    Text Solution

    |

  3. C^(14) has a half- life of 5760 years. 100mg of the sample containing ...

    Text Solution

    |

  4. If 3//4 quantity of a radioactive substance disintegrates in 2 hours, ...

    Text Solution

    |

  5. Half life of radium is 1580 years. It remains 1/16 after the…..

    Text Solution

    |

  6. If half life period of radium is 1600 years, its average life period w...

    Text Solution

    |

  7. A radioactive isotope having a half life of 3 days was received after ...

    Text Solution

    |

  8. Radioactivity of a radioactive element remains 1//10 of the original r...

    Text Solution

    |

  9. A freshely prepared radioactive source of half 2 hours emits radiation...

    Text Solution

    |

  10. A radioisotope has a half life of 10 days. If today there is 125 g of...

    Text Solution

    |

  11. The half- life periods of four isotopes are give below : (i) 7.6 yea...

    Text Solution

    |

  12. The first stable which was transmuted b artificial means was:

    Text Solution

    |

  13. When .(13)^(27)Al is bombarded whith alpha-particles, a radioactive is...

    Text Solution

    |

  14. Which of the following transformation is not correct?

    Text Solution

    |

  15. The reaction .(92)U^(235) + .(0)n^(1) rarr .(56)Ba^(140) + .(36)Kr^(93...

    Text Solution

    |

  16. .(6)C^(14) in upper atmosphere is generated by the nuclear reaction

    Text Solution

    |

  17. In the transformation of ""(92)""^(238)U to ""(92)""^(234)U, if one em...

    Text Solution

    |

  18. A positron is emitted from .(11)Na^(23) . The ratio of the atomic mass...

    Text Solution

    |

  19. Hydrogen bomb is based on the principle of

    Text Solution

    |

  20. Which of the following is not a fissionalbe material?

    Text Solution

    |