Home
Class 12
CHEMISTRY
An old chair of wood show ""(6)C""^(14) ...

An old chair of wood show `""_(6)C""^(14)` activity which is 80% of the activity which is 80% of the activity found today. Calculate the age of the old chair of wood.
(`t""_(1//2)of .""_(6)C""^(14)=5770 yr`)?

A

`t=2.303/5770log"100/80`

B

`t=5770/0.301log"100/80`

C

`t=5770/0.693log"100/80`

D

`t=0.693/5770log"100/80`

Text Solution

Verified by Experts

The correct Answer is:
b

`t=2.303/lamdalog.(N""_(0)/N)`
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise MULTI ANSWER|15 Videos
  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise MATRIX MATCH|9 Videos
  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise STATEMENT|4 Videos
  • METTALURGY

    NARAYNA|Exercise Statement Typer Question|2 Videos
  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    NARAYNA|Exercise EXERCISE-4|30 Videos

Similar Questions

Explore conceptually related problems

A piece of wood from an archelogical source shows a .^(14)C activity which is 60% of the activity found in fresh wood today. Caculate the age of the archeologival sample. ( t_(1//2) for .^(14)C = 5570 year)

A wooden artifact sample gave activity 32-beta particles per second while the freshly cut wood gave activity of 64 beta particles per second in Geiger Muller counter. Calculate the age of the wooden artifact (t_(1//2) "of" C^(14) = 5760 years)

The amount of C-14 in a piece of wood is found to be 1/6 of the amount present in a fresh piece of wood. What is the age of the wood ? (t_(1//2) for C-14 =5770 years)

The ._(6)C^(14) and ._(6)C^(12) ratio in a piece of woods is 1//16 part of atmosphere. Calculate the age of wood. t_(1//2) "of" C^(14) is 5577 years?

NARAYNA-NUCLEAR CHEMISTRY-SINGLE ANSWER
  1. In a first order reaction, the concentration of the reactants is reduc...

    Text Solution

    |

  2. The decay constant of a radioactive sample is 'lambda'. The half-life ...

    Text Solution

    |

  3. An element X decays first by positron emission and then two alpha-part...

    Text Solution

    |

  4. In the reaction represented by, ""(Z)""^(A)Xto.""(Z-2)""^(A-4)Yto.""...

    Text Solution

    |

  5. The number of beta-particles emitted during the change ""(a)""^(c)Xto"...

    Text Solution

    |

  6. The decay constant of a radioactive substance is 0.173 (year)""^(-1). ...

    Text Solution

    |

  7. The radioactivity of a sample is R(1) at a time T(1) and R(2) at time ...

    Text Solution

    |

  8. If the amount of radioactive substance is increased three times, the n...

    Text Solution

    |

  9. The intergrated rate equation is Rt = log, C(0) - log C(t). The stra...

    Text Solution

    |

  10. The number of neutrons accompanying the formation of ""(54)""^(139)Xe ...

    Text Solution

    |

  11. The numberr of neutrons emitted when ""(92)""^(235)U undergoes control...

    Text Solution

    |

  12. Two radioactive elements X and Y half-live pf 50 and 100 minute respe...

    Text Solution

    |

  13. The time in which activity of an element is reduced to 90% of its orig...

    Text Solution

    |

  14. The half of ""(92)""^(238)U against alpha-decay is 4.5xx10""^(9)year. ...

    Text Solution

    |

  15. Two isotopes P and Q atomic weight 10 and 20, respectively are mixed i...

    Text Solution

    |

  16. A rock is found to contain U-238 and Pb-206 in the ratio of 3 : 2. If ...

    Text Solution

    |

  17. Half life of a radioactive substance is 60 min. After 3 hours, the fra...

    Text Solution

    |

  18. The activity of a sample of radioactive material A(1) at time t(1) and...

    Text Solution

    |

  19. An old chair of wood show ""(6)C""^(14) activity which is 80% of the a...

    Text Solution

    |

  20. For nuclide ""(Z)X""^(A), which of the following changes snot take pla...

    Text Solution

    |