Post Utme Nile University 2023 Physics Question 8

Practice objective / multiple choice question 8 from the 2023 Post Utme Nile University Physics examination.

Post Utme Nile University 2023 Physics Objective / Multiple Choice
Question 8 POST_UTME_NILE_UNIVERSITY • 2023 • PHYSICS • objective

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

Answer Options

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

About This Question

This is Post Utme Nile University 2023 Physics Question 8. It is one of the objective questions from the 2023 Post Utme Nile University Physics examination.

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