Write down the four characteristics of longitudinal waves.
Answers
Answer:
Transverse waves are characterized by peaks and valleys, called crests and troughs.
In a longitudinal wave, the particles of the medium move parallel to the wave's direction of travel.
This type of wave is characterized by areas of high and low densities in the medium, called compressions and rarefactions.
compression waves, because they produce compression and rarefaction when traveling through a medium, and pressure waves, because they produce increases and decreases in pressure
Answer:
A longitudinal wave is a wave where the particles in the medium move parallel to the direction of propagation of the wave.
Characteristics of Longitudinal Waves
- Compression:
A compression is a region in a longitudinal wave where the particles are closest together.
- Rarefaction:
A rarefaction is a region in a longitudinal wave where the particles are furthest apart.
The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.
- Wavelength:
The wavelength in a longitudinal wave is the distance between two consecutive points that are in phase.
The wavelength in a longitudinal wave refers to the distance between two consecutive compressions or between two consecutive rarefactions.
- Amplitude:
The amplitude is the maximum displacement from a position of rest.
The amplitude is the distance from the equilibrium position of the medium to a compression or a rarefaction.
- Period:
The period of a wave is the time taken by the wave to move one wavelength.
- Frequency:
The frequency of a wave is the number of wavelengths per second.
The period of a longitudinal wave is the time taken by the wave to move one wavelength. As for transverse waves, the symbol T is used to represent period and period is measured in seconds (s).
The frequency (f) of a wave is the number of wavelengths per second. Using this definition and the fact that the period is the time taken for 1 wavelength, we can define:
f=1/T
or alternately,
T=1/f.
Speed of a Longitudinal Wave
The speed of a longitudinal wave is defined as:
v=f⋅λ
where
v = speed in m.s−1
f = frequency in Hz
λ = wavelength in m
Speed of longitudinal waves
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