COMEDK · Physics · 29. Nuclear Physics
The masses of two radioactive substances are same and their half-lives are 1 year and 2 years, respectively. The ratio of their activities after 6 years will be
- A \(1: 4\)
- B \(1: 2\)
- C \(\mathbf{l}: 3\)
- D \(1: 6\)
Answer & Solution
Correct Answer
(A) \(1: 4\)
Step-by-step Solution
Detailed explanation
Let initial masses of two radioactive substances be \(N_{0}\). If \(T_{1}\) and \(T_{2}\) be the half-lives of two radioactive substances, Then, \(\quad T_{1}=1\) yr Hence, remaining mass of the first substances after…
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