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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2003
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Q)

The radioisotope, tritium ($ ^3_1H$) has a half-life of 12.3 years. If the initial amount of tritium is 32 mg, how many milligrams of its would remain after 49.2 years :


( A ) 8 mg
( B ) 4 mg
( C ) 1 mg
( D ) 2 mg

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