Nuclear Physics and RadioactivityMedium
Question
A radioactive substance decays to 1/16th of its initial activity in to 40 days. The half -life of the radioactive substance expressed in days is
Options
A.2.5
B.5
C.10
D.20
Solution
Let half life = T
40 days =
Half life
Ratio of substance left =
So,
= 4 ⇒ T = 
= 10 days
40 days =
Half life Ratio of substance left =
So,
= 4 ⇒ T = = 10 daysCreate a free account to view solution
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