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10 thereI pls hell whether it issintheta or Cos that aAngloof incidence-Angle ofLa Lireoreflection50Table 50, 50째 + 0 = 90째ClockNormalEarA = 90째-50째of 0 - 400Lo Lua 400 (from oFig. 12.4he ceiling and wall behind the stage of good conference halls orWhy is the ceiling and wallConcert halls made curved?Long Answer Questionsresent graphically by two separate diagrams in each caseTwo sound waves having the same amplitude but different frequencies?Two sound waves having the same frequency but different amplitudes.nues having different amplitudes and also different |
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Answer» The ceiling and walls behind the stages are made curved so that the sound after reflection reaches all corners of the hall uniformly. |
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