# The Obedient Reflected Ray

The Obedient Reflected Ray

Two mirrors are joined at a fixed angle at . A ray of light shines into the angle between them, parallel to the horizontal mirror and at a given height. It bounces a number of times. Suppose it strikes the lower mirror at right angles at and then reemerges along the original path. This is called an obedient ray.

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What is the relationship between the distance between the height and the length of ? The answer is given in the Details.

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