A teacher stands well back from an outside doorway 0.88m wide, and blows a whistle of frequency

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A teacher stands well back from an outside doorway 0.88m wide, and blows a whistle of frequency 750Hz. Ignoring reflections, estimate at what angle(s) it is not possible to hear the whistle clearly on the playground outside the doorway?

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Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: Jun 18, 2010 05:18 AM

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A teacher stands well back from an outside doorway 0.88m wide, and blows a whistle of frequency

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The wavelength of the sound is v 343ms f 0457 m 750 Hz We fi...View the full answer

Physics Principles with Applications

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