Sound exits a diff raction horn loudspeaker through a
Chapter , Problem 13(choose chapter or problem)
Sound exits a diff raction horn loudspeaker through a rectangular opening like a small doorway. Such a loudspeaker is mounted outside on a pole. In winter, when the temperature is 273 K, the diff raction angle u has a value of 15.08. What is the diff raction angle for the same sound on a summer day when the temperature is 311 K?
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