Question
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Solving time: 2 mins
At time , number of nuclei of a radioactive substance are 100. At these numbers become 90. Find the number of nuclei at .
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Text solutionVerified
In 1 second, of the nuclei have remained undecayed, so in another 1 second of 90 , i.e. 81 nuclei will remain undecayed.
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Question Text | At time , number of nuclei of a radioactive substance are 100. At these numbers become 90. Find the number of nuclei at . |
Topic | Nuclei |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 99 |