Post Utme Unilag 2024 Physics Question 13

Practice objective / multiple choice question 13 from the 2024 Post Utme Unilag Physics examination.

Post Utme Unilag 2024 Physics Objective / Multiple Choice

Question 13 POST_UTME_UNILAG • 2024 • PHYSICS • objective

A radioactive sample of $^{238}U$ has a half-life of $4.5 \times 10^9$ years. If the initial activity of the sample is $A_0 = 10^6$ Bq, what is the activity of the sample after $t = 1.8 \times 10^9$ years?

A. $ 2.5 \times 10^5 $

Correct Answer B. $ 5.0 \times 10^5 $

C. $ 1.0 \times 10^6 $

D. $ 2.0 \times 10^6 $

Correct Answer

Correct Option:

$ 5.0 \times 10^5 $

This is Post Utme Unilag 2024 Physics Question 13. It is one of the objective questions from the 2024 Post Utme Unilag Physics examination.

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