GRECA METHOD PLEASEEE Two smooth reflecting surfaces ( A and B) are perpendicular to each other. Light strikes surface A at a point 12 cm from the point of intersection of surfaces A and B. If the angle of incidence e1= 30°, how far from the point of intersection of the two surfaces will the reflected light from surface A strike surface B?

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GRECA METHOD PLEASEEE Two smooth reflecting surfaces ( A and B) are perpendicular to each other. Light strikes surface A at a point 12 cm from the point of intersection of surfaces A and B. If the angle of incidence e1= 30°, how far from the point of intersection of the two surfaces will the reflected light from surface A strike surface B?
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