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Define half-life period and average life...

Define half-life period and average life. Derive relation between them.

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Half Life And Average Life

Knowledge Check

  • Half life period and mean life period of a radioactive element are

    A
    a.Inversely proportional to each other
    B
    b. Directly proportional to each other
    C
    c. Equal to each other
    D
    d. Not related to each other

  • Average life period is equal to

    A
    `(1)/(t_(0*5))`
    B
    `(1)/(lambda)`
    C
    `(t_(0*5))^(2)`
    D
    `0*75 t_(0*5)`

  • Fr has half life period of

    A
    21 seconds
    B
    21 minutes
    C
    21 hours
    D
    21 kgs

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