A stationary wave is formed from two identical sound waves.
A microphone is placed at a position of maximum loudness. It is then moved along the stationary wave from this first position of maximum loudness to the fourth position of maximum loudness. The microphone moves a distance of 12 cm.
The speed of sound is $330m{s^{ - 1}}$.
What is the frequency of the sound waves?
4100 Hz
2 )
5500 Hz
3 )
8300 Hz
4 )
11 000 Hz
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