Define Some Important Terms
Amplitude
Wavelength
Angular wave number Frequency
Time period
Answers
Explanation:
Amplitude: The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
Wavelength: Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave.
Angular wave number Frequency: In physics, the wave number is also known as propagation number or angular wave number is defined as the number of wavelengths per unit distance the spacial wave frequency and is known as spatial frequency.
Time period: The time required to complete one oscillation is known as time period.
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Amptitude - The amplitude of a periodic variable is a measure of its change over a single period. There are various definitions of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values. In older texts the phase is sometimes called the amplitude.
wavelength - The wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.[1][2] 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.[3][4] The inverse of the wavelength is called the spatial frequency. Wavelength is commonly designated by the Greek letter lambda (λ). The term wavelength is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids
Angular wave number Frequency - The wavenumber (also wave number or repetency[1]) is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance. Whereas temporal frequency can be thought of as the number of waves per unit time, wavenumber is the number of waves per unit distance.
In multidimensional systems, the wavenumber is the magnitude of the wave vector. The space of wave vectors is called reciprocal space. Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as X-ray diffraction, neutron diffraction, and elementary particle physics. For quantum mechanical waves, the wavenumber multiplied by the reduced Planck's constant is the canonical momentum.
Wavenumber can be used to specify quantities other than spatial frequency. In optical spectroscopy, it is often used as a unit of temporal frequency assuming a certain speed of light.
Time period - The time period (denoted by 'T' ) is the time taken for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the time period of the wave decreases. The unit for time period is 'seconds'.
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