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Radioactive nuclei are being generated a...

Radioactive nuclei are being generated at a constant rate by some kind of nuclear reaction. If the decay constant for the radioactive nuclei is `lambda`, which of the following graphical representation is correct ? (initially, there are no radioactive nuclei present )

A

B

C

D

Text Solution

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The correct Answer is:
A, B
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Knowledge Check

  • The decay constant lambda of a radioactive sample:

    A
    Decreases with increase of external pressure and temperature
    B
    Increase with increase of external pressure and temperature
    C
    Decreases with increase of temperature and increase of pressure
    D
    Is independent of temperature and pressure.

  • For the radioactive nuclei that undergo either alpha or beta decay, which one of the following cannot occur?

    A
    Isobar of original nucleus is produce
    B
    Isotop of the original nucleus is produced
    C
    Nuclei with higher atomic number than that of the original nucleus is produced
    D
    Nuclei with lower atomic number than that of the original nucleus is produced

  • The decay constant lambda of the radioactive sample is probaility of decay of an atom in unit time, then

    A
    `lambda` decrease as atoms become older
    B
    `lambda` increases as the age of atoms increases
    C
    `lambda` is independent of the age
    D
    behaviour of `lambda` with time depends on the nature of the activity

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