The frequency is 666 MHz.
89
n
The frequency ranges between 450 THz and 950 THz.
671 nm
The "Balmer Series" includes the visible spectrum of light from hydrogen ... fourwavelengths, 410 nm, 434 nm, 486 nm, and 656 nm, that correspond to emissionsof photons by electrons in excited states transitioning to the quantum level describedby the principal quantum number n equals 2. (There are also a number of ultravioletBalmer lines with wavelengths shorter than 400 nm.)Of the four visible Balmer lines, the one with the longest wavelength ... 656 nm ...is the one with the lowest energy per photon. It appears quite red.
The frequency is 666 MHz.
639 miles.The distance between Santa Fe NM and Dallas is about 656 road miles.
the structure of the chromosphere
X rays have a wavelength of 4.2 nm.
89
n
The frequency ranges between 450 THz and 950 THz.
416 nm
671 nm
Apex - 467 nm
Frequency is equal to constant divided by wavelength. 3.00x108 / 780nm equals approximately 4397435897.4359 hertz.