Jamb 1978
An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit distance from each mirror. The number of images formed is A. 1 B. 2 C. 3 D. 4 E. 5
ANSWER: Option C
EXPLANATION: Use the equation below to find your answer
No. of image formed = 360/θ – 1
and remember that the angle between the plane mirrors is 90°
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What if it is 2 units?