Home
Class 12
PHYSICS
The half - life of I ^ (131) is 8 days. ...

The half - life of` `I ^ (131)` is 8 days. Given a sample of `I^(131)` at time `t = 0` , we can assert that

A

No nucleus will decay before t = 4 days

B

No nucleus will decay before t = 8 days

C

No nucleus will decay before t = 16 days

D

A given nucleus may decay at any time after t = 0

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET TEST 22

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET TEST 64

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The half - liofe of ^(131) 1 is days Given a sample of ^(131) 1 at time t = 0 , we get that

The half life of .^(131)I is 8day. Given a sample of .^(131)1 at t = 0 , we can assert that:

The half life of I""^(131) is 8 day. Given a sample of I""^(131) at t=0, we can assert that

The half-life of radon is 3.8 days. Three forth of a radon sample decay in.

The half-life of iodine-131 is 8.02 days. How long will it take for 80% of the sample to decay?

The life-life of Bi^210 is 5 days. What time is taken by (7//8)^th part of the sample of decay ?

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

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 )

NTA MOCK TESTS-NTA NEET TEST 25-PHYSICS
  1. If at some instant of time, the displacement of a simple harmonic osci...

    Text Solution

    |

  2. A vertical capillary of radius r is brought in constant with water of ...

    Text Solution

    |

  3. A closed compartment containing gas is moving with some acceleration i...

    Text Solution

    |

  4. When a ceiling fan is switched on, it makes 10 rotations in the first ...

    Text Solution

    |

  5. Let I be the moment of interia of a uniform square plate about an axis...

    Text Solution

    |

  6. The shorted wavelength of X- rays emitted from an X- rays tube depends...

    Text Solution

    |

  7. An X - ray tube produces a continuous spectrum of radiation with its s...

    Text Solution

    |

  8. The half - life of I ^ (131) is 8 days. Given a sample of I^(131) at ...

    Text Solution

    |

  9. The maximum kinetic energy of photo electrons emitted from a surface w...

    Text Solution

    |

  10. The work function of a substance is 4.0 eV. The longest wavelength of ...

    Text Solution

    |

  11. At absolute zero , Si acts as

    Text Solution

    |

  12. The logic gate given below represents a

    Text Solution

    |

  13. In the middle of the depletion layer of a reverse - biased p - n junc...

    Text Solution

    |

  14. How does the angle of minimum deviation of a glass prism vary, if the...

    Text Solution

    |

  15. A ball is dropped from a height of 20 m above the surface of water in ...

    Text Solution

    |

  16. The way the fringe pattern changes when the screen is moved away from ...

    Text Solution

    |

  17. In Young's double slit experiment, the 10th maximum of wavelength lamb...

    Text Solution

    |

  18. When unpolarised light beam is incident from air onto glass ( n = 1.5)...

    Text Solution

    |

  19. Write down the output at X for the inputs A = 0, B = 0 and A = 1, B = ...

    Text Solution

    |

  20. Two blocks of masses 10 kg and 4 kg are connected by a spring of negli...

    Text Solution

    |