1.

The decay constant \[\lambda \] of the radioactive sample is the probability of decay of an atom in unit time, then [CBSE PMT 1990]

A.            \[\lambda \] decreases 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
Answer» D.            Behaviour of \[\lambda \] with time depends on the nature of the activity


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