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8 Parts of the Electromagnetic Spectrum
2
Visible Light Waves
Frequency Range: 4x10^14 - 7.5x10^14 Hz
Wavelength: 750 nm - 400 nm.
Sources: Sun
Ultraviolet Waves
Uses:
- Compact disc & DVD players
- Laser printers
- Weapon aiming systems
Frequency Range: 10^15 - 10^17 Hz
Used in:
- Sun
- Black light lamp
- Tanning beds
Wavelength: 400 nm - 1 nm
Source: Sun
X- Rays
Frequency Range: 10^17 - 10^20 Hz
Used in:
- Catscan
- Dentistry
- Hospitals
Wavelength: 1nm - 1pm
* Scientists used X-ray to verify the theory of ‘crystallography’. *
Gamma Rays
Used in:
Cancer radiation treatment
* X-ray radiation is absorbed by the Ozone in the Earth's upper atmosphere in common with other high energy wavelengths of EM radiation. *
*Gamma rays have the smallest wavelengths and the most energy in the EM spectrum.
Frequency Range: 10^20 - 10^24 Hz
Radio Waves
Wavelength: <10^-12 m
Source: Radioactivity
Used in:
- Cellphones
- FM or AM radio stations
* Radio waves have the longest wavelength in the electromagnetic spectrum.
Frequency Range: <3x10^11 Hz
Wavelength: >1mm.
Sources: UV Radiation
8 Parts of the Electromagnetic Spectrum
Microwaves
Used in:
-Traffic speed cameras
- Radar
- Microwave ovens
Frequency Range: 3x10^11-10^13Hz
Wavelength: 1mm - 25um
Source: Electromagnetic Radiation
Infrared Waves
Infrared waves are used in:
- Remote Controls
- Video Recorders
- Mobile Phones
Frequency Range: 1x10^13 - 4x10^14 Hz
Wavelength: 25um - 750 nm
Source: Heat or thermal radiation
8 Parts of the
Electromagnetic Spectrum
- Infrared Waves
- Microwaves
- Radio Waves
- Gamma Rays
- X-Rays
- Ultra Violet Waves
- Visible Light Waves