Questions tagged [wavelength]
The wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and the inverse of the spatial frequency or wavenumber. Determined by considering the distance between consecutive corresponding points of the same phase, such as crests. Use for wavenumber, wavelength, frequency.
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The Role of Harmonic Frequencies in Natural Phenomena
I am deeply fascinated by the apparent intrinsic relationship between harmonic frequencies and the natural world. This relationship is evident not only in the mathematics that simplify our description ...
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Converting $\rm W/m2/sr/nm$ to $\rm kR/nm$ for any wavelength
I have atmospheric spectra given in W/m2/sr/nm units and wavelength in nm. I want to convert W/m2/sr/nm to kilo Rayleigh/nm (kR/nm) for any wavelength.
I tried the following method from this paper: ...
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$0$th overtone in closed organ pipes
I know about $1$st, $2$nd or other overtones in the formula of frequency in a one-sided open system (specifically in closed organ pipes) that is
$$ f = \frac{\left( 2 n + 1 \right) v}{4 L} \tag{1} \...
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A conceptual question about waves
If the tension in a string with fixed ends is slightly increased then does the wavelength of a wave travelling along the string change, or does only the frequency change?
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How could RGB color system compose a violet color?
In the GRB system, we combine the three primary colors, red, green, and blue, to make some new colors.
It's easy to understand the production of yellow because the wavelength of yellow is between red ...
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What does "non-dispersive" mean in terms of waves and group velocity?
I'm confused about the term wave group velocity: It is usually explained in terms of a superposition of harmonic waves with very closely spaced wave vectors and frequencies. It is then easily shown, ...
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What is the wavelength range of X-rays?
I was reading and came across the following paragraph
The X-rays thus produced by many electrons make up the continuous spectrum of Figure 2-10 and are very many discrete photons whose wavelengths ...
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Are intensity vs wavelength graphs really continuous? [duplicate]
For hot bodies we generally draw graph between intensity and wavelength similar to one in picture.
My question is this graph really continous?
If it is continuous, does it not mean there are infinte ...
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Does a photon form a black-hole when it is squeezed into a box of Planck length? [duplicate]
Is it true that if there is a photon with a wavelength that could fit in a box that is equal to or smaller than the Planck length, then it forms a black-hole? Originally I thought, since a Planck ...
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The physics behind the circle / spiral of fifths
In music theory, there is this thing called the circle of fifths.
If you take a string, and you divide it in two equal parts, you get a so called octave. It is, to our ear, kind of "the same tone&...
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How did Kurlbaum and others measure the intensity of each wavelength to get blackbody radiation curve?
In 1900 Plank was faced with data that didn't agree with the Plank-Wien law. This data that plots different temperature curves - wavelength on the horizontal and intensity on the vertical (or rather ...
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Wavelength of "complementary colours"?
In physics/chemistry/the life sciences there's a common experimental method of determining the concentration of a sample using spectrophotometers. We can measure the absorbance of the sample at a ...
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Finding the Bremsstrahlung in diffraction patterns of NaCl
I recently got the chance to measure the diffraction pattern of a NaCl crystal using the Bragg-Brentano method. I can see the peaks caused by the characteristic lines of the used X-ray tube (in this ...
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Will light of 405nm wavelength behave in a single mode (SM) fiber , in multimode manner?
Since the wavelength of 405nm is substantially shorter than the wavelengths of 1310-1550nm, and since the ratio of the diameter of a single mode fiber core to the wavelength, at 405nm, is several ...
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Is reflected color not from the wavelength corresponding to that color?
I was reading through Josef Albers' interaction of color (a classical art color theory book), where he makes this point:
If I see a substance, or pigment of a particular color, doesn't that mean I'm ...
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