Post Utme Noun 2019 Physics Question 37

Practice objective / multiple choice question 37 from the 2019 Post Utme Noun Physics examination.

Post Utme Noun 2019 Physics Objective / Multiple Choice
Question 37 POST_UTME_NOUN • 2019 • PHYSICS • objective

A radioactive sample has a half-life of $T_{1/2}$. If the initial activity of the sample is $A_0$, what is the activity of the sample after a time $t$?

Answer Options

Correct Answer A. \( A_0 left\( \frac{1}{2} \right \ \)^{t/T_{1/2}} )
B. \( A_0 left\( \frac{1}{2} \right \ \)^{T_{1/2}/t} )
C. \( A_0 left\( 1 - \frac{t}{T_{1/2}} \right \ \) )
D. \( A_0 left\( 1 + \frac{t}{T_{1/2}} \right \ \) )
Correct Answer
A
Correct Option:
\( A_0 left\( \frac{1}{2} \right \ \)^{t/T_{1/2}} )

About This Question

This is Post Utme Noun 2019 Physics Question 37. It is one of the objective questions from the 2019 Post Utme Noun Physics examination.

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