Question
Question: If N<sub>0</sub> is the initial number of nuclei, number of nuclei remaining undecayed at the end of...
If N0 is the initial number of nuclei, number of nuclei remaining undecayed at the end of nth half life is
A
2–n N0
B
2n N0
C
n–2 N0
D
n2 N0
Answer
2–n N0
Explanation
Solution
After first half life period N = 2N0
After second half life period N¢ = 2N0× 21
= 22N0
After nth half life period = N" = 2nN0= N0 2–n.