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Define half life period....

Define half life period.

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Knowledge Check

  • 10g of a radioactive isotope is reduced to 1.25 g in 12 years. Therefore, half-life period of the isotope is:

    A
    24 years
    B
    4 years
    C
    3 years
    D
    8 years

  • The time taken by a radioactive element to reduce to etimes its original amount is its: half - life period

    A
    half - life period
    B
    `("mean life period")/(2)`
    C
    mean life period
    D
    `"(mean lfe period")/(2)`

  • The half life period of tritium is _________

    A
    12.33 secs
    B
    12.33 mins
    C
    12.33 hrs
    D
    12.33 years

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