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A General Review of Physics Still under development, however changes are made regularly - check back by later. |
The Electromagnetic Spectrum
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength.. They can all travel through empty space and they all travel at the same speed. This speed is sometimes called The Speed of Light. It is 300 000 000 m/s (three hundred million metres per second). The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths. Electromagnetic energy passes through space at the speed of light in the form of sinusoidal waves. The wavelength is the distance from wavecrest to wavecrest (see figure below - again, click on the image to enlarge).
Light is a particular type of electromagnetic radiation that can be seen and sensed by the human eye, but this energy exists at a wide range of wavelengths. The micron is the basic unit for measuring the wavelength of electomagnetic waves. The spectrum of waves is divided into sections based on wavelength. The shortest waves are gamma rays, which have wavelengths of 10e-6 microns or less. The longest waves are radio waves, which have wavelengths of many kilometers. The range of visible consists of the narrow portion of the spectrum, from 0.4 microns (blue) to 0.7 microns (red).
Emission Line Spectra
| Lyman Series
Where |
Balmer Series
Where |
| Paschen Series
Where |
Brackett Series
Where |
Bohrs Postulate
Ea - Eb = hv
Ea = Electron energy in OUTER Orbit
Eb = Electron energy in INNER Orbit
h = Plancks Constant
v =
Frequency of emitted radiation
| Frequency of
Emitted Radiation
Where: v = Frequency |
Transition Energy
from First Orbital to the Second Orbital
Where: l = the wavelength (in Angstroms) |
| Transition Energy
from any Orbital to the Second Orbital
Where: |
Transition Energy
from any Orbital to the First Orbital
Where: |
| Stefans Law
Where: E = Rate of
Energy Emission |
Star Size
Dsol = Solar
Diameter (in A.U) |
| Absolute Bolometric Magnitude
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Total Luminosity
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| Dissociation Formula
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| Further Research, Reading, and/or Review : | ||
| An EXCELLENT REVIEW of Mathematics for CCD Spectrographic Analysis |
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