A signal generator, amplifier and loudspeaker are used to produce different sound waves in the air of a room. The relationships between the properties of these waves are investigated.
Which relationship is not correct?
Amplitude is proportional to wavelength.
2 )
Frequency is inversely proportional to wavelength.
3 )
Intensity is proportional to amplitude squared at a given frequency.
4 )
Period is equal to the reciprocal of frequency.
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