UPSC NDA I 2022 Mathematics Solved Paper
© examsiri.com
Question : 58 of 120
Marks:
+1,
-0
A radioactive substance decays at a rate proportional to the amount of substance present. If half of the substance decays in 100 years, then what is the decay constant (proportionality constant)?
[NDA-I 2022]
Go to Question: