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What else can I help you with?
How do you plot frequency spectrum using fft function in MATLAB?
plot(abs(fft(vectorname)))the FFT function returns a complex vector thus when you plot it, you get a complex graph. If you plot the absolute value of the FFT array, you will get the magnitude of the FFT.
What is amplitude spectrum?
The amplitude spectrum is a plot that shows the distribution of amplitude values of a signal across various frequencies. It provides information about the strength or magnitude of each frequency component present in the signal. The amplitude spectrum is commonly used in signal processing and audio analysis to characterize the frequency content of a signal.
What is the peak wavelength of radiation?
This question has a real subtlety in it. The simplest answer is given by Wein's Law, sometimes called Wein's Displacement Law: The peak of the spectrum for any "blackbody" (this works approximately for stars and people, basically any opaque object). Wavelength of peak emission = (Stefan's constant, which you can look up) x 0.0029meter / temperature in Kelvins. According to this formula, the peak is in the green part of the spectrum. But a lot of light is given off across the visual part of the spectrum so it looks whitish to me. Here's the subtlety that few people realize. This all works only when you plot the spectrum as the emission per unit wavelength. You can also plot the emission per unit frequency. Then the peak is at a different location!
Why to study complex numbers?
There are many reasons, but the one I'm fond of is that if you plot a complex equation, you can visualize certain aspects of say electricity. A plot of w=(z-1)/(z+1) can show a possible electromagnetic field of two wires carrying current as depicted in the below LINK.
What microscope can plot an absorption spectrum of the item under examination?
A spectrophotometer is an instrument commonly used to measure absorption spectra of samples. Microscopes do not typically have the capability to measure absorption spectra like a spectrophotometer can.
Why are peaks important in spectroscopy?
In the field of spectroscopy absorption a peak means the wavelength of radiation where a sample absorbs. Different molecules absorb radiation of different wavelengths. An absorption spectrum will show a number of absorption bands, each one corresponding to structural groups within the molecule. Each band is represented by peak if you plot absorbance vs wavelength. By knowing which structural groups correspond to which peaks, you can often identify a compound by it's spectrum. For many molecules, the spectrum has been characterized, and you can use the spectrum to determine the purity, concentration, or other properties of the molecule by looking at the position and intensity of the peaks in the absorption spectrum.
Can we say if a signal is periodic or nonperiodic by just looking at its frequency domain plot How?
Yes, a signal can often be classified as periodic or nonperiodic by examining its frequency domain plot. A periodic signal will typically exhibit discrete frequency components, appearing as distinct spikes in the frequency spectrum at regular intervals. In contrast, a nonperiodic signal usually presents a continuous spectrum, indicating a range of frequencies without distinct peaks. Thus, the presence of isolated frequency components suggests periodicity, while a continuous distribution suggests nonperiodicity.
Is a plot an adjective?
No, a plot is a noun. To plot is a verb.
Why bode plot is called plot not graph?
cos it's a plot it needs to be called a plot
What conspiracy is there to the assassination of John F. Kennedy?
They lack boundaries. According to various theories it was a Cuban plot, a Russian Plot, a CIA plot, a DOD plot, an Alien Plot, a Republican plot, a Vietnamese plot, a Ku Klux Klan plot, a Moon man plot and other scenarios that may be equally absurd.
What is episodic plot?
It is a plot divided into parts，each having its own plot yet contributing to the bigger plot.
Can a plot happen outside a plot?
The plot is just what happens in the story. You can't have plot going on outside of a story, no.
