Waec Model Questions Vol1 2017 Physics Question 23
Practice objective / multiple choice question 23 from the 2017 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 2017 Physics Question 23. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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