Physics, 29.12.2020 08:40 timothyashburn8

1th 22. 2060 [Kartik] Q. No. 25 A radioactive source is decayed to of its initial activity after 50
128
days, what is its half-life.

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1th 22. 2060 [Kartik] Q. No. 25 A radioactive source is decayed to of its initial activity after 50...