LONGITUDINAL WAVE
Longitudinal wave is a wave that has a vibration direction parallel to the direction of the wave propagation slinki example is driven back and forth. When moved forward slinki ¬advanced-retreat then the density will be formed and slinki sprawl as shown in Figure 5. One wavelength in the longitudinal wave is defined as the distance between two adjacent central density or the distance between two adjacent sprawl centers.
The formula of the second wave are:
F V = λ V = λ / T
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Description:
T = wave period
V = fast wave propagation (m / s)
λ = wavelength (m)
f = frequency (Hz)
Example Problem:
The distance between the nearest peaks and valleys is 80 cm. If within 10 seconds there were 60 waves that pass a point, what is the rapid propagation of these waves?
discussion:
Wave has peaks and valleys is the wave transversal.From picture below shows that ½ λ = 80 cm, so that λ = 160 cn. In 10 s occurred 60 waves.
f = 60 / (10) wave / s
f = 6 Hz
V = λ f
= 160 X 6 = 960 cm / s
= 9.6 m / s
So rapid is the wave propagation was 9.6 m / s
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