phy2053 hwk17

# phy2053 hwk17 - PHY 2053 Chapter 17 Homework Solutions Page...

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Unformatted text preview: PHY 2053 Chapter 17 Homework Solutions Page 1 of 2 PHY2053 – Chapter 17 Homework Solutions Conceptual Questions: 1, 2, 3, 5, 6, 8, 10, 12 Problems: 2, 5, 9, 13, 16, 20, 27, 29, 30, 34, 37, 39 Conceptual Questions 1. No. When two sound waves have destructive interference, the loudness of the resulting sound can be smaller than either sound or even zero. 2. When one of the speakers is shut off, you would hear the sound from the other speaker. 3. In the first case, the distances to both speakers are the same. Therefore the path difference is zero, hence, the interference is always constructive and the loudness of the sound does not change. In the second case, the path difference is changing. The interference alternates between constructive and destructive, therefore, the loudness of the resulting sound alternates between faint and loud. 5. FM radio wave has higher frequency and shorter wavelength, thus, according to D / sin λ θ = , diffracts less readily around a given obstacle than AM radio wave....
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phy2053 hwk17 - PHY 2053 Chapter 17 Homework Solutions Page...

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