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What else can I help you with?
Define the bandwidth of a frequency modulated signal?
I believe the bandwidth of ANY signal is defined as the range of frequencies that encompasses 99% of the signal's power. For an AM signal at anything less than 100% modulation, it's 2 x the highest modulating frequency. FM signals aren't that simple to characterize. "Cramer's Rule" says that the bandwidth is 2 x (peak deviation + highest modulating frequency), but as the 'modulation index' increases, that rule becomes a poorer approximation.
Why is source modulation used in atomic absorption spectroscopy?
Source modulation in atomic absorption spectroscopy is used to enhance sensitivity and reduce background noise. By modulating the lamp intensity at a specific frequency, it becomes easier to distinguish the absorption signal from the baseline noise, leading to better detection limits and accuracy in the analysis.
What is modulation why do we need modulation?
Sometimes we have to send low frequency information, like the tone of the voice of someone talking on a telephone, over a specific channel that only permits a specific high frequency, such as radio frequencies (RF). So how do we do that? One simple, cost effective, and bandwidth efficient method is to change, or modulate, a known RF signal a certain way. Some common ways of modulating such a high frequency signal are Amplitude Modulation and Frequency Modulation. Each of these modulation techniques has its own advantages and disadvantages and are therefore more useful in certain applications.
What happens to the wavelength of a wave that is traveling at a certain speed and its frequency is doubled?
If the frequency becomes double what it was, then the wavelength becomes 1/2 of what it was.
What part of a wave changes when the pitch changes?
The frequency of the wave changes when the pitch changes. Pitch is our perception of the frequency of a sound wave, so as the frequency increases, the pitch becomes higher and as the frequency decreases, the pitch becomes lower.
What happen when frequency of a vibrating body becomes equal to its natural frequency?
When the frequency of a vibrating body becomes equal to its natural frequency, resonance occurs. This causes the amplitude of the vibrations to increase significantly, as the driving frequency reinforces the natural vibration frequency of the body. This can lead to excessive strain and potential damage to the vibrating body if not controlled.
Why you can not transmit AC through wireless communication?
because AC(alternating current) either uses 50Hz/60Hz.and for such a low frequency anteena at Recieving end becomes of infinite length Or say uncontroleable.if so we can use modulation technique,can use carrier of high frequency which will definitly reduces anteena size then why this way of transmitting electricity has adopted yet?
What changes in the when you increase the wavelength?
The frequency becomes lower. Frequency is how fast the waves come by.
Why does a wave with short wavelenth have a high frequency?
Wave velocity in general = frequency x wavelength As the velocity of the wave remains constant then frequency and wavelength are inversely related So as the wavelength becomes shorter then frequency becomes larger or higher
How does the pitch of the note depend on the frequency?
The pitch of a note is directly related to its frequency - the higher the frequency, the higher the pitch of the note. As frequency increases, the pitch becomes higher, and as frequency decreases, the pitch becomes lower. This relationship follows a logarithmic scale, where each doubling of frequency corresponds to one octave higher in pitch.
What changes in the wave when you increase the wavelength?
The frequency becomes lower. Frequency is how fast the waves come by.
How do longer wavelengths affect frequency?
As wavelength becomes longer then frequency becomes smaller. Since c = v l Here v is (nu) the frequency and l (lambda) the wavelength, c is the velocity of the wave. So frequency and wavelength are inversley related.
