7 images of an object at what angle between two mirrors
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The number of images depends on the angle between the two mirrors. The number of images formed in two plane mirrors inclined at an angle A to each other is given by the formula:
Number of images = 360/A - 1.
images = 7
360/a - 1 = 7
360/a = 8
360/ 8 = a
a = 4.5 degrees
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