Post Utme Abu 2025 Physics Question 18

Practice objective / multiple choice question 18 from the 2025 Post Utme Abu Physics examination.

Post Utme Abu 2025 Physics Objective / Multiple Choice

Question 18 POST_UTME_ABU • 2025 • PHYSICS • objective

A radioactivity experiment involves a sample of uranium-238 with an initial mass of 10 g. If the half-life of uranium-238 is 4.5 billion years, how many half-lives have passed after 10 billion years?

A. 1.11 half-lives

Correct Answer B. 2.22 half-lives

C. 3.33 half-lives

D. 4.44 half-lives

Correct Answer

Correct Option:

2.22 half-lives

This is Post Utme Abu 2025 Physics Question 18. It is one of the objective questions from the 2025 Post Utme Abu Physics examination.

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