In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is
PHYSICS
WAEC 1994
In 24 days a radioactive isotope decreases in mass from 64g to 2g. What is the half life of the radioactive material
- A. 0.75 days
- B. 2.58 days
- C. 4 days
- D. 4.80 days
Correct Answer: D. 4.80 days
Explanation
Half life time= 24/5 = 4.8 days
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