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The activity of a radioactive sample fal...

The activity of a radioactive sample falls from `600 s^(-1) to 500 s^(-1) in 40 minutes. Calculate its half-life.

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Knowledge Check

  • Activity of a substance changes from 700 s^(–1) to 500 s^(–1) in 30 minute. Find its half-life in minutes

    A
    66
    B
    52
    C
    56
    D
    62

  • The decay constant of a radioactive sample is 0.01 s^(-1) . Its half-life period is

    A
    693 s
    B
    6.93 s
    C
    0.693 s
    D
    69.3 s

  • The activity of a radioactive sample drops fo 1//32 of its initial value in 7.5 h. Find the half life ?

    A
    7.5 Hr
    B
    5 Hr.
    C
    1.5 Hr
    D
    None

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    The activity of a radioactive element reduces to (1//16)th of its original value in 30 years. Find its half life?

    The rate of disintegration of a radioactive substance falls from (40)/(3) dps to (5)/(3) dps in 6 hours. The half - life of the radioactive substance is

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