A sample of (which decays by $\beta$-emission)has an activity of 14.7 mCi.After 26.1 d it has an activity of 4.25 mCi.The half-life of ³²P is approximately A)3.03 d B)7.30 d C)12.1 d D)14.6 d E)24.2 d

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The Answer of A sample of (which decays by $\beta$-emission)has an activity of 14.7 mCi.After 26.1 d it has an activity of 4.25 mCi.The half-life of ³²P is approximately A)3.03 d B)7.30 d C)12.1 d D)14.6 d E)24.2 d

A Sample of (Which Decays By β\betaβ -Emission)has an Activity of 14

A Sample of (Which Decays By $\beta$ -Emission)has an Activity of 14