Post Utme Unn 2019 Physics Question 19
Practice objective / multiple choice question 19 from the 2019 Post Utme Unn Physics examination.
A radioactive subs\tance has a half-life of 10 years. If the initial activity is 100 Bq, what is the activity after 20 years?
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About This Question
This is Post Utme Unn 2019 Physics Question 19. It is one of the objective questions from the 2019 Post Utme Unn Physics examination.
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