Pd * 28%E) 7. 1 points CJ9 25.P.006. My Notes Ask Your Teach The drawing shows a

Question

Pd * 28%E) 7. 1 points CJ9 25.P.006. My Notes Ask Your Teach The drawing shows a laser beam shining on a plane mirror that is perpendicular to the floor. The beam's angle of incident is 28.9. The beam emerges from the laser at a point that is 1.10 m from the mirror and 1.80 m above the floor. After the reflection, how far from the base of the mirror does the beam strike the floor? -1.10m? 1.80 m Floor Additional Materials Section 25.3 Submit Assignment Save Assignment Progress Home My Assignments Extension Request

Explanation / Answer

for plane mirror

angle of incidence = angle of reflection

so for reflected ray

tan theta = opp/adj

tan theta = 1.8/x

x = 1.8/tan 28.9

x = 3.26

distance = 3.26 - 1.1 = 2.16 m

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