NEET2021Physics-Nuclear Physics
NEET 2021 Physics Radioactive Decay MCQ Question
Type: MCQ-numerical-Medium-Class 12
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be :
A
1/2
B
1/2√2
C
2/3
D
2/3√2
Correct Answer
Option B
Detailed Explanation
After 150 hours, 1.5 half-lives have passed. The remaining fraction is (1/2)^(1.5) = 1/2√2.
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