%3Cp%3E%3Cspan%20style%3D%22color%3A%26nbsp%3Brgb(51%2C%26nbsp%3B51%2C%26nbsp%3B
ID: 2279871 • Letter: #
Question
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/ Answer
the fundamental frequency in a tube open at both ends is
f = c/2L
the speed of sound varies as Sqrt[1/m] where m is the molar mass of the gas;
the speed of sound in helium will be Sqrt[28.8/4] = 2.68 times faster than the speed of sound in air
the fundamental frequency will be 2.68 times greater or 2.68 x 264 Hz = 707.52Hz
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