Post Utme Bsu 2017 Chemistry Question 39

Practice objective / multiple choice question 39 from the 2017 Post Utme Bsu Chemistry examination.

Post Utme Bsu 2017 Chemistry Objective / Multiple Choice

Question 39 POST_UTME_BSU • 2017 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 10 years. If the initial activity is 100 Bq, calculate the activity after 20 years.

A. \( A = A_0 \times left\( \frac{1}{2} \right \ \)^{n} )

B. \( A = A_0 \times left\( \frac{1}{2} \right \ \)^{t} )

Correct Answer C. \( A = A_0 \times left\( \frac{1}{2} \right \ \)^{\frac{t}{t_{1/2}}} )

D. \( A = A_0 \times left\( \frac{1}{2} \right \ \)^{\frac{t}{t_{1/2}} \times 2} )

Correct Answer

Correct Option:

\( A = A_0 \times left\( \frac{1}{2} \right \ \)^{\frac{t}{t_{1/2}}} )

This is Post Utme Bsu 2017 Chemistry Question 39. It is one of the objective questions from the 2017 Post Utme Bsu Chemistry examination.

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support