The wavelength of a wave is the length where the shape of the wave starts to repeat itself. This can be also defined using the wave equation. Another definition for wavelength can be given using the phase. Wavelength is the distance between two consecutive points of the wave that are in the same phase.
For a given wave, since the wave velocity is constant, the wavelength becomes inversely proportional to the frequency. Wavenumber is another very important property of a wave. Wavenumber is defined as the number of wavelengths in a given distance.
There are two main wavenumber measurements. Thus we can say, 1 Hz of frequency specifies 1 complete vibration or oscillation per second. As we can see that the total number of vibrations produced per second is less in the first case than the second case. Thus the first wave is a low-frequency wave while second is the high-frequency wave. The frequency of waves can have values up to a larger range like kHz or MHz.
The time duration in which one complete wave is produced is known as time period. Frequency is a parameter used to explain the oscillatory or vibratory motion like sound wave, lightwave, mechanical vibration etc. The relation between frequency and time period is given as:. The time period tells the minimum duration after which the wave motion is repeated.
So, the reciprocal of the time period provides the number of repetitions occurring in a unit time i. The audible frequency range lies between 20 Hz to 20 kHz. And it is determined by the source by which it is produced. The minimum distance between the two consecutive identical wave points is known as wavelength. As it specifies the distance thus its fundamental unit is meter. Consider the figure below:.
So, one wavelength is the length between two consecutive crests or troughs or zero crossing in the phase similar to wave motion. The units of frequency are thus cycles per second, or Hertz Hz. Wavelength is one way of measuring the size of waves.
It is the distance between two corresponding points on adjacent waves, usually measured in meters. The wavelength of a transverse wave can be measured as the distance between two adjacent crests. The wavelength of a wave is simply the length of one complete wave cycle. The wavelength can be measured as the distance from crest to crest or from trough to trough. In fact, the wavelength of a wave can be measured as the distance from a point on a wave to the corresponding point on the next cycle of the wave.
Definition: Wavelength can be defined as the distance between two successive crests or troughs of a wave. Description: Wavelength is the distance from one crest to another, or from one trough to another, of a wave which may be an electromagnetic wave, a sound wave, or any other wave.
It is the distance between consecutive corresponding points of the same phase on the wave, such as two adjacent crests, troughs, or zero crossings, and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. The inverse of the wavelength is called the spatial frequency. Begin typing your search term above and press enter to search.
Press ESC to cancel. Skip to content Home Physics What is the relation between frequency and wavenumber? Ben Davis October 16,
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