Electromagnetic Spectrum Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
AMPG | C | Amplitech Group, Inc. | -4.96 | |
RELL | C | Richardson Electronics, Ltd. | -2.53 | |
LEDS | D | SemiLEDS Corporation | 0.00 | |
MSAI | F | Infrared Cameras Holdings, Inc. | -0.46 |
Related Industries: Communication Equipment Electronics Distribution Semiconductor Memory Software - Infrastructure
Related ETFs - A few ETFs which own one or more of the above listed Electromagnetic Spectrum stocks.
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
ROSC | C | Hartford Multifactor Small Cap ETF | 0.32 | |
OMFS | C | Invesco Russell 2000 Dynamic Multifactor ETF | 0.08 | |
DES | B | SmallCap Dividend Fund | 0.04 | |
DGRS | C | WisdomTree U.S. SmallCap Dividend Growth Fund | 0.03 | |
IWC | C | iShares Microcap ETF | 0.03 |
Compare ETFs
Date | Stock | Title |
---|---|---|
May 30 | AMPG | AmpliTech regains compliance with Nasdaq |
May 30 | AMPG | AmpliTech Announces Receipt of Notice from Nasdaq Regaining Compliance |
- Electromagnetic Spectrum
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 1025 hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus. This frequency range is divided into separate bands, and the electromagnetic waves within each frequency band are called by different names; beginning at the low frequency (long wavelength) end of the spectrum these are: radio waves, microwaves, terahertz waves, infrared, visible light, ultraviolet, X-rays, and gamma rays at the high-frequency (short wavelength) end. The electromagnetic waves in each of these bands have different characteristics, such as how they are produced, how they interact with matter, and their practical applications. The limit for long wavelengths is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length. Gamma rays, X-rays, and high ultraviolet are classified as ionizing radiation as their photons have enough energy to ionize atoms, causing chemical reactions. Exposure to these rays can be a health hazard, causing radiation sickness, DNA damage and cancer. Radiation of visible light wavelengths and lower are called nonionizing radiation as they cannot cause these effects.
In most of the frequency bands above, a technique called spectroscopy can be used to physically separate waves of different frequencies, producing a spectrum showing the constituent frequencies. Spectroscopy is used to study the interactions of electromagnetic waves with matter. Other technological uses are described under electromagnetic radiation.
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