a) The fundamental frequency of a vibrating system is 450 Hz. If the system is a cylindrical pipe with only one end open, give the lowest frequency (excluding the fundamental) at which a standing wave can occur.
b)The fundamental frequency of a vibrating system is 275 Hz. If the system is a cylindrical pipe with only one end open, give the lowest frequency (excluding the fundamental) at which a standing wave can occur.
a)f = 450 Hz
for only one end open,
n lambda/2 = L
n is the odd number.
for fundamental frequency, n = 1 and for first over tone n = 3
1/450 = f'/3
f' = 1350 Hz
b)f = 275 Hz
similarly, f' = 3f
f' = 3 x 275 = 825 Hz
Hence, f' = 825 Hz
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