Waec Model Questions Vol1 2020 Physics Question 39
Practice objective / multiple choice question 39 from the 2020 Waec Model Questions Vol1 Physics examination.
A radioactive substance has a half-life of 5 years. If you start with 80 grams of the substance, how much will remain after 15 years?
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About This Question
This is Waec Model Questions Vol1 2020 Physics Question 39. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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