Question: Two plane mirrors are each L = 3.5 m long. They are parallel and are placed 0.25 m apart. If a light ray enters from

Two plane mirrors are each L = 3.5 m long. They are parallel and are placed 0.25 m apart. If a light ray enters from one end as shown in Figure P24.9, how many reflections occur before it leaves the region between mirrors?

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