A 1.30-m long gas column that is open at one end and closed at the other end has a fundamental resonant frequency 80.0 Hz. What
is the speed of sound in this gas?
1 answer:
Answer:
The speed of sound in this gas = 416 m/s
Explanation:
The wave produced in a column open at one end, closed at the other has the relation L = λ/4 with the length of the tube.
The standing wave pattern for the tube closed at one end has a node at the closed end & an antinode at the open end.
The distance between the node and antinode = wavelength/4 = λ/4
1.3 = λ/4
λ = 5.20 m
For any wave, v = fλ
v = velocity of the wave = ?
f = frequency of the wave = 80 Hz
λ = wavelength of the wave = 5.20 m
v = 5.2 × 80 = 416 m/s
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