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Unformatted text preview: n = 1250 Hz then clearly corresponds to n = 5, since Therefore, there are 5 quarterwavelengths within length L, and the positions of the nodes are as shown (note that 5 = v/f 5 = [343 m/s]/[1250 Hz] = 0.2744 m, and 5 /4 = 0.0686 m): f 1 = v 2L (1) = 1 2L F F f 1 new f 1 old = F new F old , yielding F new F old = f 1 new f 1 old 2 = 392 Hz 329 Hz 2 = 1.420 f n = n odd v 4L , f 1 = 1 343 m/s 4 (0.343 m) = 250 Hz . f n = n odd f 1 = n odd 250 Hz = 1250 Hz for n odd = 5 ....
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 Spring '11
 EricSzarmes
 Physics

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