Physics (AS & A Level) · Oct / Nov 2021 · Paper 13 · Question 24

A stationary sound wave is formed in a pipe that is closed at one end and open at the other end. The wave has two antinodes. One of these antinodes is at the open end of the pipe. The length of the pipe is 0.600 m. The speed of sound in the air column in the pipe is 340 m s–1. What is the frequency of the sound wave?

1. A425 Hz
2. B850 Hz
3. C1130 Hz
4. D2270 Hz

As printed in the paper