Home
Class 12
PHYSICS
Two' radioactive samples X and Y having ...

Two' radioactive samples `X` and `Y` having half life 3 years and 2 years, respectively, havẻ been decaying for many years. Today both samples have equal number of atoms. After how many years the number of atoms in the sample `X` will be twice of the number of atoms in the sample `Y` ?

Text Solution

Verified by Experts

The correct Answer is:
6
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR PHYSICS

    CENGAGE PHYSICS|Exercise ddp.5.5|15 Videos

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Integer Type|4 Videos

Similar Questions

Explore conceptually related problems

A radioactive sample has half-life of 5 years. Probability of decay in 10 years will be.

Two radioactive elements X and Y half-live pf 50 and 100 minute respectiv ely. Intial sample of both the elements have same number of atoms. The ratio of the reamaining number of atoms of X and Y after 20 minute is:

The half-life of radon is 3.8 days. After how many days 19/20 of the sample will decay ?

Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes respectively. Initially, the samples have equal number of nuclei. After 80 minutes, the ratio of decayed numbers of A and B nuclei will be

Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes respectively. Initially, the samples have equal number of nuclei. After 80 minutes, the ratio of decayed numbers of A and B nuclei will be :

A radioactive sample has a half life 1500 years. A sealed tube conataining 1g of the sample will contain after 3000 years,

CENGAGE PHYSICS-NUCLEI-QUESTION BANK
  1. The distance of closest approach of a certain nucleus is 7.2 fm and it...

    Text Solution

    |

  2. The activity of a fresh radioactive solution of volume 1 litre is 1200...

    Text Solution

    |

  3. Two' radioactive samples X and Y having half life 3 years and 2 years,...

    Text Solution

    |

  4. Radioactive NUCLEI A and B with half lives T and 21 , respectively, di...

    Text Solution

    |

  5. Geiger counter reading of a radioactive sample is initially 6800 count...

    Text Solution

    |

  6. A sample of beta active NUCLEI has a half life of 1.00 min. Initially,...

    Text Solution

    |

  7. For a substance, the average life for alpha -emission is 3240 years an...

    Text Solution

    |

  8. A nucleus with mass number 220 , initially at rest, emits an alpha -pa...

    Text Solution

    |

  9. Consider the following 'fusion reaction: underset(1)overset(2) H +unde...

    Text Solution

    |

  10. A radioactive sample S(1) having the activity A(1) has twice the numbe...

    Text Solution

    |

  11. Two radioactive elements R and S disintegrate as RtoP+alpha,lamda(R)...

    Text Solution

    |

  12. The radioactive sources A and B, initially containing the same number ...

    Text Solution

    |

  13. A nucleus X, initially at rest, decays into a nucleus Y with the emiss...

    Text Solution

    |

  14. The graph represents the decay of a newly prepared sample of radioacti...

    Text Solution

    |

  15. The threshold energy (in (MeV) ) for the following nuclear reaction to...

    Text Solution

    |

  16. Half life of a radioactive substance is 2.34 min. It is produced at'a ...

    Text Solution

    |

  17. A radioactive sample has a half life of 40s. When its activity is meas...

    Text Solution

    |

  18. A moving neutron collides with stationary H-atom in ground state. As a...

    Text Solution

    |

  19. One possible method for revealing the presence of concealed nuclear we...

    Text Solution

    |

  20. For a substance, the average life for alpha -emission is 1620 years an...

    Text Solution

    |