`3.8` days is the half-life period of a sample. After how many days. The sample will become `1//8 th ` of the original substance ?A. `11.4`B. `3.8`C. 3D. None of these

`3.8` days is the half-life period of a sample. After how many days. T

1.	`3.8` days is the half-life period of a sample. After how many days. The sample will become `1//8 th ` of the original substance ?A. `11.4`B. `3.8`C. 3D. None of these
Answer» Correct Answer - A (a) `(N)/(N_0) = ((1)/(2))^n rArr (1)/(8) = ((1)/(2))^n rArr n = 3` Now `t = n xx T_(1//2) = 3 xx 3.8 = 11.4 days`.

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`3.8` days is the half-life period of a sample. After how many days. The sample will become `1//8 th ` of the original substance ?A. `11.4`B. `3.8`C. 3D. None of these

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