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7. Calculate the half-life of an isotope if its activity falls from 1600 counts per second to 400 counts per second after 60 days.​

7. Calculate the half-life of an isotope if its activity falls from 1600 counts per second to 400 counts per second after 60 days.​
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7. Calculate the half-life of an isotope if its activity falls from 1600 counts per second to 400 counts per second after 60 days.​

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User Samaursa
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1 Answer

5 votes
(Physics question btw)

1600 to 400 counts denotes 2 half lives. (1600/2 = 800, 800/2 = 400)

So if 2 half lives has taken 60 days then 1 half life will be half of 60

= 30 days
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User Yegle
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