Post Utme Ims U 2020 Physics Question 20

Practice objective / multiple choice question 20 from the 2020 Post Utme Ims U Physics examination.

Post Utme Ims U 2020 Physics Objective / Multiple Choice
Question 20 POST_UTME_IMS_U • 2020 • PHYSICS • objective

A light ray is incident on a mirror with an angle of incidence $i = 45^circ$. If the mirror is a concave mirror with a focal length $f = -10 , \text{cm}$, what is the angle of reflection $r$?

Answer Options

Correct Answer A. \( r = i \)
B. \( r = 2i \)
C. \( r = \sin^{-1} left\( \frac{n \sin i}{n + \sin i} \right \ \) )
D. \( r = \sin^{-1} left\( \frac{n \sin i}{n - \sin i} \right \ \) )
Correct Answer
A
Correct Option:
\( r = i \)

About This Question

This is Post Utme Ims U 2020 Physics Question 20. It is one of the objective questions from the 2020 Post Utme Ims U Physics examination.

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