Home
Class 12
PHYSICS
A sample contains 16 gm of radioactive m...

A sample contains `16 gm` of radioactive material, the half-life of which is two days. After `32` days, the amount of radioactive material left in the sample is

A

less than 1 mg

B

`1/4` g

C

`1/2` g

D

1g

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    TARGET PUBLICATION|Exercise Evaluation test|19 Videos

  • ATOMS, MOLECULES AND NUCLEI

    TARGET PUBLICATION|Exercise Critical Thinking|62 Videos

  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos

Similar Questions

Explore conceptually related problems

A sample contains 10 mg of radioactive material of half life 270 days. The mass of remaining radioactive material after 540 days will be

A radioactive element has a half life of one day. After three days the amount of the element left will be :

10 gm of radioactive material of half-life 15 year is kept in store for 20 years, The disintegrated material is.

A radioactive material has half-life of 10 days. What fraction of the material would remain after 30 days ?

A radioactive material of mass number 198 decays with half life of 3 days. If initial amount of radioactive material is 2mg then its initial activity will be?

In a mean life of a radioactive sample

If 10% of a radioactive material decays in 5 days, then the amount of original material left after 20 days is approximately.

A radioactive material has an initial amount 16 gm After 120 days it reduces to 1 gm . Then the half-life of radioactive material is

TARGET PUBLICATION-ATOMS, MOLECULES AND NUCLEI -Competitive Thinking
  1. Half life of a radio-active substance is 20 minutes. The time between ...

    Text Solution

    |

  2. Half-life of a radioactive substance A and B are, respectively, 20 min...

    Text Solution

    |

  3. A sample contains 16 gm of radioactive material, the half-life of whic...

    Text Solution

    |

  4. The half-life of tritium is 12.5 years. What mass of tritium of initia...

    Text Solution

    |

  5. A radioactive sample of half life 10 days contains 1000X nuclei. Numbe...

    Text Solution

    |

  6. A radioactive element has rate of disintegration 10,000 disintegrat...

    Text Solution

    |

  7. A certain radioactive element disintegration with a decay constant of ...

    Text Solution

    |

  8. A sample of a radioactive element has a mass of 10 g at an instant t=0...

    Text Solution

    |

  9. If the half life of a radioactive nucleus is 3 days nearly, what fract...

    Text Solution

    |

  10. In the given nuclear reaction A, B, C, D, E represents .92 U^238 rarr^...

    Text Solution

    |

  11. A radioactive element X disintegrates successively Xoverset(beta^(-)...

    Text Solution

    |

  12. A radiaoactive nucleus (initial mass number A and atomic number Z emit...

    Text Solution

    |

  13. In the decay series .(92)U^(238) to .(82)Pb^(206), how many alpha-pari...

    Text Solution

    |

  14. A radioactive element .90 X^238 decay into .83 Y^222. The number of be...

    Text Solution

    |

  15. Two radioactive substances X and Y initially contain an equal number o...

    Text Solution

    |

  16. The de Broglie wavelength lambda of a particle

    Text Solution

    |

  17. The de-Broglie wavelength of an electron in 4th orbit is (where, r=rad...

    Text Solution

    |

  18. A body of mass 100g moves at the speed of 36 km/hr. The de Broglie wav...

    Text Solution

    |

  19. The de - Broglie wavelength of a neutron at 27 ^(@) C is lambda. What ...

    Text Solution

    |

  20. A charged particle is associated from rest through a certain potential...

    Text Solution

    |