2. Images in Plane Mirrors How many images of a single object can be formed with

Question

2. Images in Plane Mirrors How many images of a single object can be formed with two flat mirrors which meet at an angle of 90°, 600, 1200, and 0° (facing each other)? It is important that you do not locate the object along the bisector, as that might "hide" one of the images. Sketch all the images for each case. (As you will see, it will not be possible to draw all the images for the 0° case. Just show the first four.) For the 120° arrangement, in place of the simple sketch, carefully draw the object and images, showing two rays that determine how each image is formed.

Explanation / Answer

no. of images formea1d n = (360/theta -1)

so
when theta = 90 deg , n = 360/90 -1 = 3 images

when theta = 60 deg, n = 360/60-1 = 5 images

when theta = 120, n = 360/120 -1 = 2 images

when theta = 0 deg n = infinity or parallel images

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