Question
Medium
Solving time: 3 mins
A sample contains two radioactive isotopes decaying into two different daughter nuclei with half lives of 10 hour and 12 hour respectively. Initially their mass ratio is and activity of the first one is . The ratio of the atomic masses of the two isotopes is . What would be their activities and mass ratio after 60 hour?
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Text solutionVerified
Initially,
Let and be the atomic masses respectively
Given But
But
After
Similarly,
mass ratio
Let and be the atomic masses respectively
Given But
But
After
Similarly,
mass ratio
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Question Text | A sample contains two radioactive isotopes decaying into two different daughter nuclei with half lives of 10 hour and 12 hour respectively. Initially their mass ratio is and activity of the first one is . The ratio of the atomic masses of the two isotopes is . What would be their activities and mass ratio after 60 hour? |
Topic | Nuclei |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 64 |