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

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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