Question
Physics Question on Radioactivity
A radio-active elements has half-life of 15 years. What is the fraction that will decay in 30 years?
A
0.25
B
0.5
C
0.75
D
0.85
Answer
0.75
Explanation
Solution
The correct answer is (C) : 0.75.
A radio-active elements has half-life of 15 years. What is the fraction that will decay in 30 years?
0.25
0.5
0.75
0.85
0.75
The correct answer is (C) : 0.75.