A teacher stands well back from an outside doorway 0.88m wide and blows a whistle of frequency 950Hz Ignoring reflections, estimate at what angle(s) it is not possible to hear the whistle clearly on the playground outside the doorway. Assume 340m/s for the speed of sound.
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Answer:A teacher stands well back from an outside doorway 0.88m wide and blows a whistle of frequency 950Hz Ignoring reflections, estimate at what angle(s) it is not possible to hear the whistle clearly on the playground outside the doorway. Assume 340m/s for the speed of sound.
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