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The decay constant of a radioactive samp...

The decay constant of a radioactive sample is `lambda`. The half-life and the average-life of the sample are respectively

A

(a) `1//lambda` and `(In2)//lambda`

B

(b) `(In2)//lambda` and `1//lambda`

C

(c) `lambda(In2)` and `1//lambda`

D

`lambda//(In2)` and `1//lambda`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • The decay constant of a radioactive sample is 'lambda' . The half-life and mean life of the sample are respectively

    A
    `1/lamda,("in"2)/lamda`
    B
    `("in"2)/lamda,1/lamda`
    C
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    D
    `lamda/("in"2),1/lamda`

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    `(1)/(lamda), (ln 2)/(lamda)`
    B
    `(ln 2)/(lamda), (1)/(lamda)`
    C
    `lamda ln 2, (1)/(lamda)`
    D
    `(lamda)/(ln 2), (1)/(lamda)`

  • The decay constant of a radiaoacation sample is lambda . The half life and mean life of the sample are respectively given by

    A
    `1// lambda and (in 2 )// lambda`
    B
    ` (in 2 )// lambda`and 1// lambda `
    C
    ` lambda (in 2 ) and 1// lambda `
    D
    ` lambda //(in 2 ) and 1// lambda `

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