1.

A substance of which one gram is taken, after half-life time what fraction of it is left ?    [MADT Bihar 1983]

A.                 \[\frac{1}{4}\]   
B.                 \[\frac{1}{8}\]
C.                 \[\frac{1}{2}\]   
D.                 \[\frac{1}{32}\]
Answer» D.                 \[\frac{1}{32}\]


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