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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  1999
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Q)

Half life of a radioactive sample is 4 days. After 16 days how much quantity of matter remain undecayed :


( A ) $\frac{1}{16}$
( B ) $\frac{1}{4}$
( C ) $\frac{1}{32}$
( D ) $\frac{1}{8}$

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