Post Utme Rhema University 2020 Physics Question 4

Practice objective / multiple choice question 4 from the 2020 Post Utme Rhema University Physics examination.

Post Utme Rhema University 2020 Physics Objective / Multiple Choice
Question 4 POST_UTME_RHEMA_UNIVERSITY • 2020 • PHYSICS • objective

A radioactive sample decays according to the equation $N(t) = N_0 e^{-\lambda t}$, where $N_0$ is the initial number of nuclei, $\lambda$ is the decay cons\tant, and $t$ is time. If the sample decays to $\frac{1}{4}$ of its initial value in 10 minutes, what is the decay cons\tant?

Answer Options

Correct Answer A. \frac{1}{10} \text{min}^{-1}
B. \frac{1}{20} \text{min}^{-1}
C. \frac{1}{30} \text{min}^{-1}
D. \frac{1}{40} \text{min}^{-1}
Correct Answer
A
Correct Option:
\frac{1}{10} \text{min}^{-1}

About This Question

This is Post Utme Rhema University 2020 Physics Question 4. It is one of the objective questions from the 2020 Post Utme Rhema University Physics examination.

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