Two parallel mirrors are a distance d apart. An object is placed 2 cm in front of the right-hand mirror. After 6 reflections, with the first reflection from the right-hand mirror, an image is located 18 cm behind the right-hand mirror. Calculate the distance between the mirrors. 2.67 cm B) 2.94 cm C) 5.33 cm D) 4.0cm E) 3.2cm
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