Question
Hard
Solving time: 5 mins
Q.223. In a uranium ore, the ratio of nuclei to nuclei is η = 2.8. Evaluate the age of the ore, assuming all the lead to be a final decay product of the uranium series. The half-life of nuclei is years.
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Text solutionVerified
What this implies is that in the time since the ore was formed nuclei have remained undecayed. Thus
or
Substituting
years,
we get
years
or
Substituting
years,
we get
years
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Question Text | Q.223. In a uranium ore, the ratio of nuclei to nuclei is η = 2.8. Evaluate the age of the ore, assuming all the lead to be a final decay product of the uranium series. The half-life of nuclei is years. |
Topic | Nuclei |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 98 |