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A cutoff wavelength is the point at which a waveguide or fiber optic system can no longer effectively transmit a certain frequency range of light or signal. It marks the transition from guided propagation to leakage, resulting in signal loss and distortion beyond that point. Cutoff wavelengths are crucial for determining the operating limits of optical systems.
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What is mean by cutoff wavelength .simple definiion?
It is the range of wavelength at which the energy flowing through the system begins to reduce or attenuated. In case of devices, it is the wavelength at which interruption or cessation in power takes place.
The waves which cannot be transmitted in waveguide are?
The waves that cannot be transmitted in a waveguide are those that have a wavelength longer than the cutoff wavelength of the waveguide. These waves are unable to propagate efficiently within the waveguide due to the cutoff phenomenon which restricts their transmission.
Why the phase velocity in a waveguide can exceed the velocity of light?
In a waveguide, the phase velocity can exceed the velocity of light because the phase velocity is a theoretical concept related to how the phase of a wave propagates, whereas the speed of light is the limit at which information can be transmitted. The group velocity, which relates to the transport of energy, is always less than the speed of light in a waveguide.
The higher an electromagnetic wave frequency the lower its?
wavelength. This is because frequency and wavelength have an inverse relationship, meaning as frequency increases, wavelength decreases. This relationship is described by the equation speed = frequency x wavelength, where speed is the speed of light in a vacuum.
How does the frequency of a wavelength changes?
The frequency of a wavelength is inversely proportional to its wavelength. This means that as the wavelength increases, the frequency decreases, and vice versa. This relationship is described by the formula: frequency = speed of light / wavelength.
