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The half life of a radioactive nuclide i...

The half life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be:

A

`2/3`

B

`2/(3 sqrt(2))`

C

`1/2`

D

`1/(2 sqrt(2)`

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Knowledge Check

  • The half-life of a radioactive nuclide is 20 hours. What fraction of original activity will remain after 40 hours?

    A
    `1/4`
    B
    `1/3`
    C
    `1/2`
    D
    `1/6`

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

    A
    14.4 h
    B
    7.2 h
    C
    20 h
    D
    6.93 h

  • The half-life period of a radioactive nuclide is 3 hours. In 9 hours its activity will be reduced by a factor of

    A
    `1//9`
    B
    `1//8`
    C
    `1//27`
    D
    `1//6`

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    The half life period of radio active isotope is 5 minutes. The fraction of isotope, that will be remaining after 30 minutes is

    The half life of a radioactive material is 12.7 hr. What fraction of the original active material would become inactive in 63.5 hr.

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