You need to use your cell phone, which broadcasts an 830MHzsignal, but you' re in an
Chapter 17, Problem 61(choose chapter or problem)
You need to use your cell phone, which broadcasts an 830MHzsignal, but you' re in an alley between two massive, radiowave-absorbing buildi ngs thaf have only a 15 m space betweenthem. What is the angular width, in degrees, of the electromagneticwave after it emerges from between the buildings?
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