Two mirrors meet at right angles. A ray of light is incident on one at an angle of 30°

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Two mirrors meet at right angles. A ray of
light is incident on one at an angle of 30° as shown in Fig. 16.19. Draw the reflected ray from the second mirror. 

Answer: Laws of reflection will apply here. Applying triangle law properties, we can easily find out, the emergent ray from mirror B, will reflect at 60 degrees.

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