0
If the frequency vs wavelength of neutral hydrogen radio emission is 21cm vs 1428MHz where can I find such emissions for other elements all I seem to find is measured in nanometers for some reason?
Wiki User
∙ 13y ago
1 nanometer is the same as 0.0000001 centimeter.
The emissions for the other elements that you're finding are in the range of visible light,
compared to the 1428 MHz line of hydrogen that's in the low microwave. Their wavelengths
are much much much shorter, and their frequencies are much much much higher.
To get the frequency of any wavelength, divide 300,000,000 by the wavelength in meters, or
divide 30,000,000,000 by the wavelength in centimeters, or divide 300,000,000,000 by the
wavelength in millimeters, or divide 300,000,000,000,000,000 by the wavelength in nanometers.
The answer is the frequency in Hz. Divide it by 1,000 to get KHz, or divide it by 1,000,000 to get MHz,
or divide it by 1,000,000,000 to get GHz.
For the wavelength of any frequency, divide 300,000,000 by the frequency in Hz, or divide 300,000
by the frequency in KHz, or divide 300 by the frequency in MHz, or divide 0.3 by the frequency in GHz.
The answer is in meters. Multiply it by 100 to get centimeters, or multiply it by 1,000 to get millimeters,
or multiply it by 1,000,000,000 to get nanometers.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Why do astronomers use frequency?
Frequency or wavelength is used in the spectrum of astronomical objects in order to identify which chemical elements are present in the stars.
How do you read spectrograph?
To read a spectrograph, interpret the x-axis as frequency or wavelength, the y-axis as intensity, and the colors or patterns as different spectral lines corresponding to different elements or compounds. Peaks or dips in intensity indicate the presence of specific emissions or absorptions at certain frequencies or wavelengths.
If you have a strong infrared absorbance at 1500 cm-1. what is the wavelength of its frequency?
1501
What is the difference between white light and the light from gaseous elements?
White light is a mixture of colours, light from gaseous elements is of one colour, sometimes of just one wavelength (frequency)
What is mean by lumped element in electronics?
lumped" means that the dimension of you ckt element is much smaller than the wavelength of the signal passing through it. Therefore, you can treat your ckt element as a lumped unit (against the wavelength), and do not have to worry about wave propagation phenomenon "within" your ckt element. The opposite of "lumped element" is "distributed network." Typically, in low-frequency ckt/network, since the frequency is low, therefore, the wavelength is large (wavelength = propagation speed(usu. speed of light) / frequency ), so most elements can be treated as lumped. However, as frequency goes higher and higher, the wavelength becomes shorted and shorter, the wave propagation effect WITHIN the ckt element becomes more and more pronounced.
Why do different elements emit different colors when they are heated?
because when elements are heated there electrons become excited and jump through the elements "steps" and as they become less excited the jump back down steps emitting a unique wavelength and the visible wavelength is the colour we see -------------------------------------- The wavelength of the spectral lines emitted by different elements are specific for each element. Consequently the colour is also different.
What are the 2 elements of sound?
Frequency and amplitude.
Frequency of specific elements always the same?
yes it is the same.
How do the sizes of atoms compare to the wavelengths of visible light?
It's hard to come up with a definite number, because the total electromagnetic spectrum has no definite edges. So, although we do know pretty close what the limits of visible wavelength are, there are no definite limits of electromagnetic wavelengths to compare to the visible range. However, I have handled this question a few times here on W.A., and I can give you a few facts on the subject. The first, basic answer to your question is: Any way you slice it, the visible range of wavelengths is a teeny, tiny, minuscule sliver of the total EM spectrum. In order to come up with a number, let's set some limitsto the total spectrum. Let's say that the lowest frequency (longest wavelength) is the bottom of the AM radio broadcast band ... 550 KHz. And let's say that the highest frequency (shortest waves) are the longest of what we call gamma rays ... somewhere around 10^-19 meters in wavelength (3 giga-giga-gigahertz). That range covers about 72 octaves (1 octave means double the frequency or wavelength, or cut them in half.) Out of that 72 octaves, roughly 1 octave of wavelengths are visible ... something like 380 nanometers (dull violet) to 750 nanometers (deep red).
What length of dipole in relation to its wavelength in meters or khz?
There are several kinds of dipole; the most common is the half-wave dipole. Its total length is fairly close to half the wavelength of the design frequency. The length needs to be adjusted slightly to compensate for the thickness of the elements and for end-effects. If the length is wrong by ten or twenty percent it will alter the feed impedance, but have little effect on the gain.
What is the range of the radii of most atoms in nanometers(nm)?
The atomic radii of most chemical elements are in the range 75-250 pm or 0,075-0,25 nm.
What is the range of the radii of most atoms in nanometers (NM)?
It is between 1 and 55 Angstroms.55 Angstroms equates to 5.5 nanometers.
