Post Utme Wellspring University 2017 Physics Question 23

Practice objective / multiple choice question 23 from the 2017 Post Utme Wellspring University Physics examination.

Post Utme Wellspring University 2017 Physics Objective / Multiple Choice
Question 23 POST_UTME_WELLSPRING_UNIVERSITY • 2017 • PHYSICS • objective

A radioactive sample has an initial activity of $A_0 = 100 \text{ Bq}$. If the half-life of the sample is $t_{1/2} = 10 \text{ min}$, what is the activity of the sample after $t = 20 \text{ min}$?

Answer Options

A. \( A = 50 \text{ Bq} \)
Correct Answer B. \( A = 25 \text{ Bq} \)
C. \( A = 12.5 \text{ Bq} \)
D. \( A = 6.25 \text{ Bq} \)
Correct Answer
B
Correct Option:
\( A = 25 \text{ Bq} \)

About This Question

This is Post Utme Wellspring University 2017 Physics Question 23. It is one of the objective questions from the 2017 Post Utme Wellspring University Physics examination.

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