A standing wave in a pipe with a length L = 1.2m is described as y(x,t) = y0 sin [(2π/L)x]sin [(2π/L)x+π/4] Based on above information, which one of the following statement is incorrect. (Speed of sound in air is 300 ms-1)

Question:

Options :

a) A pipe is closed at both ends
b) The wavelength of the wave could be 1.2m
c) There could be a nodes at x=0 and antinode at x=L/2
d) The frequency of the fundamental mode of vibration is 137.5 Hz

Answer :

d) The frequency of the fundamental mode of vibration is 137.5 Hz

Answer Steps :

Step:-1

Step:-2

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