Post Utme Crawford University 2019 Physics Question 23

Practice objective / multiple choice question 23 from the 2019 Post Utme Crawford University Physics examination.

Post Utme Crawford University 2019 Physics Objective / Multiple Choice
Question 23 POST_UTME_CRAWFORD_UNIVERSITY • 2019 • PHYSICS • objective

A lens of focal length $f$ is placed in a beam of light. The beam is incident on the lens at an angle $\theta$. If the lens is moved to a dis\tance $x$ from the original position, what is the new focal length $f'$?

Answer Options

Correct Answer A. \frac{f}{1 + \frac{x}{f}}
B. \frac{f}{1 - \frac{x}{f}}
C. \frac{f}{1 + \frac{f}{x}}
D. \frac{f}{1 - \frac{f}{x}}
Correct Answer
A
Correct Option:
\frac{f}{1 + \frac{x}{f}}

About This Question

This is Post Utme Crawford University 2019 Physics Question 23. It is one of the objective questions from the 2019 Post Utme Crawford University Physics examination.

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