A source, approaching with speed u towards the open end of a stationary pipe of length L, is emitting a sound of frequency f, The farther end of the pipe is closed. The speed of sound in air is v and fo is the fundamental frequency of the pipe. For which of the following combination(s) of u and f will the sound reaching the nine lead to a resonance ?

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A source, approaching with speed u towards the open end of a stationary pipe of length L, is
emitting a sound of frequency f, The farther end of the pipe is closed. The speed of sound in air is v
and fo is the fundamental frequency of the pipe. For which of the following combination(s) of u and
f, will the sound reaching the pipe lead to a resonance ?
Transcribed Image Text:A source, approaching with speed u towards the open end of a stationary pipe of length L, is emitting a sound of frequency f, The farther end of the pipe is closed. The speed of sound in air is v and fo is the fundamental frequency of the pipe. For which of the following combination(s) of u and f, will the sound reaching the pipe lead to a resonance ?
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