Light Spectrum!

By: Moriah Morado

7 Types Of Electromagnetic Waves

Gamma Rays

Are the most energetic form of electromagnetic radiation, with a very short wavelength of less than one-tenth of a nano-meter. Wavelength is less than 10 picometers (10−11meter). Has a frequency above 10 exahertz (or >1019 Hz).


1. It is used for treatment of cancerous cell in our body without the use of the surgery

2. One of the destructive use is their important role in development of the atomic bomb

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Radio Waves

Are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Has a wavelength from 1 millimeter to 100 kilometers. Has frequencies from 300 GHz to as low as 3 kHz.


1. Cell phone

2. Radio

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Are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz (100 cm) and 300 GHz (0.1 cm). The wavelength is about 30 cm (frequency = 1 GHz) to 1 mm (300 GHz).


1. Microwaves

2. Satellite

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A wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves. Infrared radiation has a wavelength from about 800 nm to 1 mm, and is emitted particularly by heated objects. The wavelength and frequency is approximately 430 THz down to 300 GHz.


1. Hot charcoal

2. Thermal imaging cameras

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visible light

Defined as the wavelengths that are visible to most human eyes. The wavelength is from about 390 to 700 nm. The frequency is the vicinity of 430–770 THz.


1. Light bulb

2. Rainbow

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Having a wavelength shorter than that of the violet end of the visible spectrum but longer than that of X-rays. It's wavelength is from 10 nm (30 PHz) to 380 nm (750 THz). It's frequency is about 8 × 1014 to 3 × 1016cycles per second, or hertz (Hz).


1. Tanning beds

2. Teeth whiting systems

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An electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light. Most X-rays have a wavelengths ranging from 0.01 to 10. The frequencies in the range 30 petahertz to 30 exahertz (3×1016Hz to 3×1019 Hz).


1. Doctor offices

2. Airport security

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