Half life of a radioactive sample is 10days. What fraction of this sample will remain undecayed after 100days?

Explanation

To solve the problem of determining the fraction of a radioactive sample that remains undecayed after 100 days, given that its half-life is 10 days, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Half-Life**:
The half-life (t_half) of the radioactive sample is given as 10 days.

2. **Determine the Total Time**:
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