Post Utme Uniben 2018 Physics Question 24

Practice objective / multiple choice question 24 from the 2018 Post Utme Uniben Physics examination.

Post Utme Uniben 2018 Physics Objective / Multiple Choice

Question 24 POST_UTME_UNIBEN • 2018 • PHYSICS • objective

A radioactive sample decays at a rate given by the equation $\frac{dN}{dt} = -\lambda N$, where $N$ is the number of nuclei and $\lambda$ is the decay cons\tant. If the initial number of nuclei is $N_0$ and the time elapsed is $t$, what is the number of nuclei remaining?

Correct Answer A. N_0 e^{-\lambda t}

B. N_0 e^{\lambda t}

C. N_0 + \lambda t

D. N_0 - \lambda t

Correct Answer

Correct Option:

N_0 e^{-\lambda t}

This is Post Utme Uniben 2018 Physics Question 24. It is one of the objective questions from the 2018 Post Utme Uniben Physics examination.

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