The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.
What are the 7 parts of electromagnetic spectrum?
The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
What are the 7 types of electromagnetic waves and their uses?
Though the sciences generally classify EM waves into seven basic types, all are manifestations of the same phenomenon.
- Radio Waves: Instant Communication. …
- Microwaves: Data and Heat. …
- Infrared Waves: Invisible Heat. …
- Visible Light Rays. …
- Ultraviolet Waves: Energetic Light. …
- X-rays: Penetrating Radiation. …
- Gamma Rays: Nuclear Energy.
What is not part of the electromagnetic spectrum?
Electricity is NOT a part of electromagnetic spectrum. An electromagnetic spectrum contains electromagnetic radiations arranged according to frequencies and wavelength.
Which parts of the electromagnetic spectrum can humans see?
visible light spectrum
What part of the electromagnetic spectrum can humans detect?
The Visible Spectrum
Visible light is the light that we can see, and thus is the only light detectable by the human eye. White light is visible light, and it contains all the colors of the rainbow, from red to violet. The range of visible wavelengths is 400 to 700 nanometers.
What color has highest frequency?
What is the most important electromagnetic spectrum?
The most important of these is visible light, which enables us to see. Radio waves have the longest wavelengths of all the electromagnetic waves. They range from around a foot long to several miles long.
What is the most important part of the electromagnetic spectrum?
Even as these organisms moved to land, visible light still proved to be the most useful part of the electromagnetic spectrum to see—radio waves would make it difficult to resolve small objects, X-rays tend to like to pass through matter, and UV rays can damage both our skin and our eyes.
What do you mean by electromagnetic spectrum?
The Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
What are the uses of the electromagnetic spectrum?
Behaviour and uses of electromagnetic waves
- Radio waves. Radio waves are used for communication such as television and radio. …
- Microwaves. Microwaves are used for cooking food and for satellite communications. …
- Infrared. …
- Visible light. …
- Ultraviolet radiation.
What color has the shortest wavelength?
How many color spectrums can humans see?
The spectrum is arranged in the order red, orange, yellow, green, blue, indigo, and violet according to the different wavelengths*1 of light; the light in the region with the longest wavelengths is seen as red, and the light in the region with the shortest wavelengths is seen as violet.
What are the colors we can see called?
The visible light spectrum ranges from about 380 to 740 nanometers. Spectral colors (colors that are produced by a narrow band of wavelengths) such as red, orange, yellow, green, blue, cyan, and violet can be found in this range.
Do humans have wavelengths?
The visible spectrum in humans is associated with wavelengths that range from 380 to 740 nm—a very small distance, since a nanometer (nm) is one billionth of a meter. Other species can detect other portions of the electromagnetic spectrum.