How do you measure the wavelength of a longitudinal wave? *
the distance from a rarefaction to a compression
the length of a rarefaction
the length of a compression
the length of one full compression and one full rarefaction
The correct answer is: the length of one full compression and one full rarefaction.
In longitudinal waves, such as sound waves, the wavelength is determined by measuring the distance between two consecutive compressions or rarefactions. The wavelength is defined as the distance covered by one complete cycle of the wave and can be measured by finding the length between a compression and the next adjacent rarefaction (or vice versa), which completes one full cycle of the wave.