Home
Class 12
PHYSICS
A radioactive nucleus can decay by two d...

A radioactive nucleus can decay by two different processes. The half life for the first process is `2 t` and that for the second process is `t`. The effective disintergration constant of nucleus is

A

`(3)/(2 tln 2)`

B

`(3ln 2)/(2t)`

C

`(ln2)/(3t)`

D

`(3 ln2)/(t)`

Text Solution

Verified by Experts

The correct Answer is:
B

`lamda = lamda _(1) + lamda _(2)`
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    NARAYNA|Exercise ASSERTION & REASON|5 Videos
  • NUCLEI

    NARAYNA|Exercise EXERCISE-3|30 Videos
  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 Videos
  • RAY OPTICS AND OPTICAL INSTRAUMENTS

    NARAYNA|Exercise EXERCISE- 4 One or more than one correct answer type|13 Videos

Similar Questions

Explore conceptually related problems

A radioactive nucleus can decay by two different processes . The half life for the first process is t_1 and that for the second process is t_2 . If effective half life is t, then

A radioactive nucleus can decay by two different processes. The half-life for the first process is t_1 and that for the second process is t_2 . Show that the effective half-life t of the nucleus is given by 1/t = 1/t_1 + 1/t_2 .

A radiactive sample decays by two different processes .Half - life for the first process is t_(1) and for the second process is t_(2) . The effective half-life is

A radiocative nucleus deays by two different processes. The half life for the first process is 10 s and that for the second is 100 s. The effective half life of the nucleus is close to :

A radioactive nucleus can decay by two differnet processess. The mean value period for the first process is t_(1) and that the second process is t_(2) .The effective mean value period for the two processes is .

A radioactive nucleus can decay by two different processes. The mean value period for the process is Z_(1) and that for the second process is Z_(2) . The effective mean value period for the two processes is:

A radioactive nucleus can decay by three different processes. Half life for first process is 2 hours . Effective half life of the necleus is 4/3 hours. Find the half for second process in hours.

A radioactive nucleus can decay by two different processes. The half lives of the first and second decay processes are 5 xx 10^(3) and 10^(5) years respectively. Then the effective half -life of the nucleus is

NARAYNA-NUCLEI -EXERCISE-4
  1. If m g of a radioactive species (molar mass M) has decay constant lamb...

    Text Solution

    |

  2. In moon rock sample the ratio of the number of stable argon-40 atoms p...

    Text Solution

    |

  3. The half-life of a radioactive sample is T. If the activities of the s...

    Text Solution

    |

  4. Consider a hypothetical annihilation of a stationary electron with a s...

    Text Solution

    |

  5. A radioactive nucleus can decay by two different processes. The half l...

    Text Solution

    |

  6. A proton with kinetic energy K, strikes another proton at rest. If the...

    Text Solution

    |

  7. The fraction quantity of a radiactive sample will decay during half of...

    Text Solution

    |

  8. A small quantity of a solution containing Na^(24) radio-nuclide of ha...

    Text Solution

    |

  9. A nucleus with mass number 220 initially at rest emits an alpha-partic...

    Text Solution

    |

  10. Some amount of a radioactive substance (half-life= 10 days) is spread ...

    Text Solution

    |

  11. In the options given below, let E denote the rest mass energy of a nuc...

    Text Solution

    |

  12. Four different radioactive elements are kept in separated containers. ...

    Text Solution

    |

  13. Binding energy per nucleons vs mass curve for nucleus is shown in the ...

    Text Solution

    |

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

    Text Solution

    |

  15. A sample of uranium is a mixture of three isotopes .(92)U^(234), .(92)...

    Text Solution

    |

  16. The table that follows shows some measurements of the decay rate of a ...

    Text Solution

    |

  17. The fraction f of radioactive material that has decayed in time t, var...

    Text Solution

    |

  18. The rate of decay (R ) of nuclei in a radioactive sample is plotted ag...

    Text Solution

    |

  19. What is the probability of a radioactive nucleus to survive one mean l...

    Text Solution

    |

  20. A radioactive isotope is being produced at a constant rate dN//dt=R in...

    Text Solution

    |