Question
Question: The half-life of a radioactive substance is 50 days. The substance will disintegrate completely in –...
The half-life of a radioactive substance is 50 days. The substance will disintegrate completely in –
A
50 days
B
500 days
C
5000 days
D
Infinite time
Answer
Infinite time
Explanation
Solution
N = N0 e–lt N becomes zero at t = ¥