If half-life of an element is 2 days, after 6 days fraction left is: MCQ with Answer and Explanation

If half-life of an element is 2 days, after 6 days fraction left is:
A. 1/8
B. 1/4
C. 1/16
D. 1/2
Answer: Option A
Solution (By JKSSB Mock Tests)
6/2 = 3 half-lives. Fraction = (1/2)³ = 1/8. Each half-life reduces remaining amount by half.

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