Physics JAMB

If the fraction of the atoms of a radioactive material left after 120years is 1/64; what is the half-life of the material? 1/64
If the fraction of the atoms of a radioactive material left after 120years is 1/64; what is the half-life of the material? 1/64If the fraction of the atoms of a radioactive material left after 120years is 1/64; what is the half-life of the material? 1/64

A. 20 years
B. 10 years
C. 2 years
D. 24 years

Correct Answer:

Option A – 20 years

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4 years ago

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