The half life period of a radioactive element is 100 days... — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to ______________ gm?

Correct answer: D

Explanation

The number of half-lives is 400/100 = 4. The remaining amount is (1/2)^4 = 1/16.

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