Post Utme Uniosun 2025 Physics Question 6

Practice objective / multiple choice question 6 from the 2025 Post Utme Uniosun Physics examination.

Post Utme Uniosun 2025 Physics Objective / Multiple Choice
Question 6 POST_UTME_UNIOSUN • 2025 • PHYSICS • objective

A radioactive sample of Uranium-238 undergoes \alpha decay. If the initial mass of the sample is 100 g, and the half-life of Uranium-238 is 4.5 billion years, what is the mass of the sample after 9 billion years?

Answer Options

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

About This Question

This is Post Utme Uniosun 2025 Physics Question 6. It is one of the objective questions from the 2025 Post Utme Uniosun Physics examination.

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