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Chapter 34: Q. 7 (page 990)

At what angle ϕshould the laser beam in FIGURE EX34.7 be aimed at the mirrored ceiling in order to hit the midpoint of the far wall?

Short Answer

Expert verified

Angle aimed at the mirrored ceiling to the mid of the wall,ϕ=42°

Step by step solution

01

Laser

A laser beam is a single-wavelength stream of concentrated, coherent light.

02

Find the angle

5-x3=x1.5ϕ=tan-11.51.67

5-x=2x

5=3x

x=53 ϕ=42°

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