33. Geometric Optics
Reflection of Light
11PRACTICE PROBLEM
Two flat mirrors (M 1 and M 2) are perpendicular to each other. A monochromatic, laser beam hits the surface of M 1, at an angle θ, 15.0 cm from the intersection of the two surfaces. After reflection from M 1, the beam of light hits the surface of M 2 25.0 cm away from the intersection. Determine the angle of incidence θ .
![](https://lightcat-files.s3.amazonaws.com/problem_images/afa178f9cef854c5-1688553102685.jpg)
Two flat mirrors (M 1 and M 2) are perpendicular to each other. A monochromatic, laser beam hits the surface of M 1, at an angle θ, 15.0 cm from the intersection of the two surfaces. After reflection from M 1, the beam of light hits the surface of M 2 25.0 cm away from the intersection. Determine the angle of incidence θ .