Post Utme Futo 2022 Physics Question 23

Practice objective / multiple choice question 23 from the 2022 Post Utme Futo Physics examination.

Post Utme Futo 2022 Physics Objective / Multiple Choice

Question 23 POST_UTME_FUTO • 2022 • PHYSICS • objective

A ray of light passes through a prism with apex angle $A$ and re\fractive index $n$. If the angle of incidence is $\theta_i$, find the angle of re\fraction $\theta_r$.

Correct Answer A. \theta_r = \arc\sin\left$ \frac{n\sin\theta_i}{n\sin A}\right $

B. \theta_r = \arc\sin\left$ \frac{n\sin A}{n\sin\theta_i}\right $

C. \theta_r = \arc\cos\left$ \frac{n\sin\theta_i}{n\sin A}\right $

D. \theta_r = \arc\cos\left$ \frac{n\sin A}{n\sin\theta_i}\right $

Correct Answer

Correct Option:

\theta_r = \arc\sin\left$ \frac{n\sin\theta_i}{n\sin A}\right $

This is Post Utme Futo 2022 Physics Question 23. It is one of the objective questions from the 2022 Post Utme Futo Physics examination.

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