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A radioactive element (t(1//2) = 50 days...

A radioactive element `(t_(1//2) = 50 days)` is spread over a room. Its activity is `30` times the permisisble value for safe working. Calculate the number of days after which the room will be available for safe working.

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To solve the problem, we need to determine how many days it will take for the activity of the radioactive element to decrease to a safe level. Given that the half-life of the radioactive element is 50 days and its initial activity is 30 times the permissible value, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Problem**: The activity of the radioactive element is currently 30 times the permissible limit. We need to find out when the activity will drop to the permissible limit. 2. **Determine the Final Activity**: ...
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