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When two mirrors are placed at an angle of 90º to each other, how many images...

Physics
JAMB 2017

When two mirrors are placed at an angle of 90º to each other, how many images will be formed when an object is placed in front of the mirrors

  • A. 5
  • B. 4
  • C. 3
  • D. 2
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Correct Answer: Option C
Explanation

When two mirror are inclined at an angle θ, the number of images formed, n = \(\frac{360}{\theta}\) − 1

∴ since \(\theta\) = 90o

∴ \(\frac{360}{\theta}\) − 1

= 4 − 1

= 3

There is an explanation video available below.


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Explanation Video

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Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts