Home
Class 12
PHYSICS
Tritium has half life of 12.5 years unde...

Tritium has half life of 12.5 years undergoing beta decay. What fraction of sample of tritium will remain undecayed after 50 years?

A

`(1)/(8)`

B

`(1)/(2)`

C

`(1)/(16)`

D

`(1)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise BOARD.S QUESTION PAPER MARCH - 2020 (PART - B) SECTION - A|10 Videos

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise BOARD.S QUESTION PAPER MARCH - 2020 (PART - B) SECTION - B|8 Videos

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise SECTION D MULTIPLE CHOICE QUESTIONS (MCQs) MCQs asked in Competitive Exams|23 Videos

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section D MCQs (MCQs asked in Competitive Exams )|38 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    KUMAR PRAKASHAN|Exercise Section D ( MCQs asked in Cometitive Exams )|39 Videos

Similar Questions

Explore conceptually related problems

Tritium has a half-life of 12.5 y undergoing beta decay. What fraction of a sample of pure tritium will remain undecayed after 25 y.

The half life period of a first order reaction is 10 mins, what percentage of the reactant will remain after one hour?

The half life of radioactive Radon is 3.8 days . The time at the end of which (1)/(20) th of the radon sample will remain undecayed is (given log e = 0.4343 )

The half life period of a radio active material is 15 minutes. What percentage of radioactivity of that material will remain after 45 minutes ?

The half-life of ""_(92)^(238)U undergoing a-decay is 4.5 xx 10^9 years. What is the activity of 1g sample of ""_(92)^(238)U ?

KUMAR PRAKASHAN-ELECTROMAGNETIC WAVES-BOARD.S QUESTION PAPER MARCH - 2020 (PART - A)
  1. Value of stopping potential depends on……. Of incident light.

    Text Solution

    |

  2. Monochromatic light of frequency 6 times 10^14 Hz is produced by laser...

    Text Solution

    |

  3. is found experimentally that 13.6 eV energy is required to separate a ...

    Text Solution

    |

  4. To excite the hydrogen atom from its ground state to second excited st...

    Text Solution

    |

  5. What is the shortest wavelength present in the Paschen series of spect...

    Text Solution

    |

  6. In case of head on collision, when the impact parameter is minimum the...

    Text Solution

    |

  7. Chlorine has two isotopes having masses 34.98u and 36.98u. The relativ...

    Text Solution

    |

  8. The binding energy per nucleon is almost constant for the nuclei havin...

    Text Solution

    |

  9. Tritium has half life of 12.5 years undergoing beta decay. What fracti...

    Text Solution

    |

  10. In an n type silicon, which of the following statements is true:

    Text Solution

    |

  11. When a forward bias is applied to a p-n junction, it……

    Text Solution

    |

  12. In half wave rectification, what is the output frequency if the input ...

    Text Solution

    |

  13. ……as a impurity, when added in Si or Ge P- type semiconductor is obtai...

    Text Solution

    |

  14. The charge equivalent to 6 times 10^18 electrons is

    Text Solution

    |

  15. The ratio of electric force and gravitational force between a proton a...

    Text Solution

    |

  16. Unit of surface charge density (sigma) is…….

    Text Solution

    |

  17. Electric field due to dipole at large distance ( r) falls off as……..

    Text Solution

    |

  18. Value of dielectric strength of air is………Vm^-1

    Text Solution

    |

  19. Three capacitors of 2pF,3pF and 4pF are connected in parallel . What i...

    Text Solution

    |

  20. Equipotential surface through a point is………… to the electric field at ...

    Text Solution

    |