What are the 7 types 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 visible spectrums?

Visible light travels at a speed of 300,000 km per second and can be broken down into seven colors. From longest to shortest wavelength, they are: red, orange, yellow, green, blue, indigo, and violet. To be clear, color is the eye’s perception of different wavelengths of electromagnetic light.

What are the categories of the electromagnetic spectrum?

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 different types of electromagnetic waves and its uses?

Nearly all frequencies and wavelengths of electromagnetic radiation can be used for spectroscopy. Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

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How many visible spectrums are there?

There are seven wavelength ranges in the visible spectrum that coordinate to a different color. Each visible color has a wavelength.

What color is 670 nm light?

Spectral colors

Color Wavelength (nm) Frequency (THz)
blue 450–485 620–670
cyan 485–500 600–620
green 500–565 530–600
yellow 565–590 510–530

How many types of waves are there?

Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.

What are the characteristics of electromagnetic spectrum?

The characteristics of the electromagnetic spectrum are the propagation features and the amount of information, which signals can carry. In general, signals sent using the higher frequencies have shorter propagation distances but a higher data-carrying capacity.

What is the highest frequency color?

When it comes to visible light, the highest frequency color, which is violet, also has the most energy. The lowest frequency of visible light, which is red, has the least energy.

What are the 7 uses of electromagnetic waves?

Uses of Electromagnetic Waves

  • Radio waves – radio and television.
  • Microwaves – satellite communications and cooking food.
  • Infrared – Electrical heaters, cooking food and infrared cameras.
  • Visible light – Fibre optic communications.
  • Ultraviolet – Energy efficient lamps, sun tanning.
  • X-rays – Medical imaging and treatments.

What are the 4 types of waves?

Types of Waves – Mechanical, Electromagnetic, Matter Waves & Their Types.

What are 5 examples of EM waves we encounter in everyday life?

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.
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How many colors are there in the spectrum?


Most people can see only seven distinct colours in the spectrum: red, orange, yellow, green, blue, indigo, and violet. Just as a prism can split white light into different colours, so lights of different colour can be added together to make white light.

What Colour is light?

White light is a combination of all colors in the color spectrum. It has all the colors of the rainbow. Combining primary colors of light like red, blue, and green creates secondary colors: yellow, cyan, and magenta. All other colors can be broken down into different combinations of the three primary colors.

What wavelength is green?

The visible spectrum

colour* wavelength (nm) energy (eV)
green 550 2.25
cyan 500 2.48
blue 450 2.75
violet (limit) 400 3.10