Home
Class 12
PHYSICS
In a sample of radioactive material the ...

In a sample of radioactive material the probability that a particular nucleus will decay in next 2 hour is `8xx10^(-4)` find the half life of the radioactive sample.
[Take `ln2=0.693,ln(0.9992)=-8xx10^(-4)`]

Text Solution

Verified by Experts

The correct Answer is:
1732.5hr
Promotional Banner

Topper's Solved these Questions

  • MOTION OF CHARGE IN MAGNETIC FIELD

    ARIHANT|Exercise Level-3|4 Videos

  • WAVE OPTICS

    ARIHANT|Exercise All Questions|37 Videos

Similar Questions

Explore conceptually related problems

Half–life of a radioactive substance A is 4 days. The probability that a nucleus will decay in two half– lives is

The half-life of a radioactive substance is 2 years. The probability that a nucleus will decay in three half-lives is

In a sample of radioactive material, what fraction of initial number of active nuclei will remain undistintegrated after half of a half0life of the sample?

If a radioactive material has half life of one year, a sample will be reduced to 1/8 of its mass in

The decay constant of a radioactive material is 5 xx 10^(-4) per year.find its half-life period.

Consider a radioactive material of half-life 1.0 minute. If one of the nuclei decays now, the next one will decay

The rate of disintegration of a certain radioactive sample at any instant is 8100 dpm. Fifty minutes later the rate becomes 2700 dpm. The half of the radioactive sample will be (Take log2=0.3, log3=0.5, log5=0.7 )

If the half-life of a radioactive sample is 10 hours its mean life is

ARIHANT-NUCLEAR PHYSICS-All Questions
  1. A radioactive species has decay constant of lambda=10^(-2)s^(-1). Prob...

    Text Solution

    |

  2. A radioactive substance has a half life of t(0). Two particular nuclei...

    Text Solution

    |

  3. In a sample of radioactive material the probability that a particular ...

    Text Solution

    |

  4. Atomic mass of .(3)^(7)Li is 7.01600u and that of .(4)^(7)Be is 7.0169...

    Text Solution

    |

  5. .(15)P^(32) is beta active and has a short half life of 14 days. The ....

    Text Solution

    |

  6. A free neutron at rest, decays into three particles: a proton, an elec...

    Text Solution

    |

  7. A radioactive nucleus A decay to C after emitting two alpha and three ...

    Text Solution

    |

  8. A nucleus at rest decays by emitting at alpha particle. The de-Broglie...

    Text Solution

    |

  9. A radioactive sample consists of two isotopes one of then decays by al...

    Text Solution

    |

  10. A deuterium nucleus at rest absorbs a Gamma ray photon of energy 2.21 ...

    Text Solution

    |

  11. Two isotopes of radioactive Radon gas -R(n)^(222) and R(n)^(220) are m...

    Text Solution

    |

  12. The Uranium -238 decay series (also known as 4n+2 series. Can you tell...

    Text Solution

    |

  13. The half lives of two longest-lived radioactive isotopes of phosphorus...

    Text Solution

    |

  14. A diatomic molecule moving at a speed u absorbs a photon of wavelenght...

    Text Solution

    |

  15. A.(7)^(14)N nucleus, when bombarded by .(2)^(4)He, converts into .(8)^...

    Text Solution

    |

  16. Following reactions are known as inverse beta decay p+vecvrarrn+e^(...

    Text Solution

    |

  17. Consider the beta^(-) decay of .(12)^(27)Mg .(12)^(27)Mgrarr.(13)^(2...

    Text Solution

    |

  18. Moderator is used in a nuclear to slow down fast neutrons generated af...

    Text Solution

    |

  19. Two radioactive elements A and B are present in a mixture. Both are be...

    Text Solution

    |

  20. The graph of binding energy per nucleon (overlineBE) versus mass numbe...

    Text Solution

    |