A} A cylindrical pipe, closed at one, is 1.75 meters long. Ifthe speed of sound

Question

A} A cylindrical pipe, closed at one, is 1.75 meters long. Ifthe speed of sound in air is 350m/s, find the lowest resonant frequencies of thepipe. B} A cylindrical pipe, open at a both ends, is 1.75 meterslong. If the speed of sound in air is 350m/s, find the lowest resonant frequencies of thepipe. C} A tone whose intensity sound level is 10^-5 w/m^2 iscompared with a reference intensity of 10^-12 w/m^2. What is the tone's intensity level? D} When 256 hz tone is sounded together with a second tone asingle tone with a frequency of 258 hz is heard. What is the beat frequency of the twotones? A} A cylindrical pipe, closed at one, is 1.75 meters long. Ifthe speed of sound in air is 350m/s, find the lowest resonant frequencies of thepipe. B} A cylindrical pipe, open at a both ends, is 1.75 meterslong. If the speed of sound in air is 350m/s, find the lowest resonant frequencies of thepipe. C} A tone whose intensity sound level is 10^-5 w/m^2 iscompared with a reference intensity of 10^-12 w/m^2. What is the tone's intensity level? D} When 256 hz tone is sounded together with a second tone asingle tone with a frequency of 258 hz is heard. What is the beat frequency of the twotones?

Explanation / Answer

length of the pipe L = 1.75 m speed of sound v = 350 m / s lowest resonant frequency f = v / 4L                                         = 50 Hz (B ) . Lowest resonant frequency f ' = v / 2 L                                                       = 100 Hz

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