Home
Class 12
PHYSICS
What is the disintegration constant of r...

What is the disintegration constant of radon if the number of its atoms diminishes by `18%` in 24 h? `["Take ln "(0.82)~~-0.2]`

A

`2.1xx10^(-3)s^(-1)`

B

`2.1xx10^(5)s^(-1)`

C

`22xx10^(6)s^(-1)`

D

`22xx10^(-6)s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET TEST 80

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET TEST 85

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

What will be the ionisation constant of formic acid if its 0.01 M solution is 14.5% ionised ?

Half-life period of a radioactive element is 100 seconds. Calculate the disintegration constant and average life. How much time will it take to lose its activity by 90% ?

NTA MOCK TESTS-NTA NEET TEST 81-PHYSICS
  1. A body starts from rest and moves with constant acceleration for t s....

    Text Solution

    |

  2. Two particles of masses m and M(Mgtm) are connected by a cord that pas...

    Text Solution

    |

  3. What is the disintegration constant of radon if the number of its atom...

    Text Solution

    |

  4. If a star can convert all the He nuclei completely into oxygen nuclei....

    Text Solution

    |

  5. A point mass m is suspended at the end of a massless wire of length l ...

    Text Solution

    |

  6. A hole is drilled along the diameter of the earth and pen is dropped i...

    Text Solution

    |

  7. Ultraviolet light by wavelength 200 nm is incident on the polished sur...

    Text Solution

    |

  8. The work function of a metal is in the range of 2 eV to 5 eV. Find whi...

    Text Solution

    |

  9. A capillary tube is dipped in water to a depth and the water rises to ...

    Text Solution

    |

  10. The bulk modulus of water is 2.0xx10^(9) N//m^(2). The pressure requir...

    Text Solution

    |

  11. The distance between the object and its real image from the convex len...

    Text Solution

    |

  12. A beam of light is travelling from region II to region III (see the fi...

    Text Solution

    |

  13. Two spheres of equal masses, one of which is a thin spheical shelll an...

    Text Solution

    |

  14. A uniform rod is held at an angle of 45^@ to the horizontal and releas...

    Text Solution

    |

  15. The electrical conductivity of a semiconductor increases when electrom...

    Text Solution

    |

  16. Which logic gate is represented by the following combination of logic ...

    Text Solution

    |

  17. A monoatomic gas (gamma=5//3) is suddenly compressed to (1//8) of its ...

    Text Solution

    |

  18. If pressure P, velocity V and time T are taken as fundamental physical...

    Text Solution

    |

  19. The interference pattern is observed at P due to superimposition of tw...

    Text Solution

    |

  20. In Young’s double slit experiment, the intensity of light coming from ...

    Text Solution

    |