Post Utme Noun 2022 Physics Question 28

Practice objective / multiple choice question 28 from the 2022 Post Utme Noun Physics examination.

Post Utme Noun 2022 Physics Objective / Multiple Choice
Question 28 POST_UTME_NOUN • 2022 • PHYSICS • objective

A radioactive subs\tance has a half-life of 5 years. If 100 g of the subs\tance is initially present, how much of the subs\tance will remain after 20 years?

Answer Options

Correct Answer A. 12.5 g
B. 25 g
C. 50 g
D. 100 g
Correct Answer
A
Correct Option:
12.5 g

About This Question

This is Post Utme Noun 2022 Physics Question 28. It is one of the objective questions from the 2022 Post Utme Noun Physics examination.

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