1.

The half-life period of a radioactive substance is 8 years. After 16 years, the mass of the substance will reduce from starting \[16.0g\] to         [MP PMT 1999]

A.                 \[8.0\,g\]            
B.                 \[6.0\,g\]
C.                 \[4.0\,g\]
D.                 \[2.0\,g\]
Answer» D.                 \[2.0\,g\]


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