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 characteristics of the 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 are the different regions in the electromagnetic spectrum?
Regions of the Electromagnetic Spectrum
- Gamma Rays (Wavelength < 10-12 meters) …
- X-Rays (Wavelength 10-8 to 10-12 meters) …
- Ultraviolet (UV) (Wavelength 10-7 – 10-8 meters) …
- Visible (Wavelength ~ 10-7 meters) …
- Infrared (Wavelength ~ 10-6 to 10-3 meters) …
- Microwaves (Wavelength ~ 10-3 to 10-1 meters)
How do the regions in the electromagnetic spectrum differ in wavelength?
Answer: The spectrum in Electromagnetic Spectrum differs by their Wavelengths, Frequencies’ Speed and Energy level.
What is a portion of the electromagnetic spectrum?
The electromagnetic spectrum ranges from the shorter wavelengths (including gamma and x-rays) to the longer wavelengths (including microwaves and broadcast radio waves). … For most purposes, the ultraviolet or UV portion of the spectrum has the shortest wavelengths which are practical for remote sensing.
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 is the electromagnetic spectrum simple definition?
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.
How do we use the electromagnetic spectrum in everyday life?
Everyday life is pervaded by artificially made electromagnetic radiation: food is heated in microwave ovens, airplanes are guided by radar waves, television sets receive electromagnetic waves transmitted by broadcasting stations, and infrared waves from heaters provide warmth.
What frequency is dangerous to humans?
The most restrictive limits on whole-body exposure are in the frequency range of 30-300 MHz where the human body absorbs RF energy most efficiently when the whole body is exposed.
Which part of the electromagnetic spectrum has the highest energy?
Which region of the electromagnetic spectrum has the shortest wavelength?
What kind of radiation is light with a wavelength of 1 cm?
Electromagnetic spectrumRegionWavelength range (approx.)CommentsMicrowave1 mm – 10 cmPresent limit of radio technology for most purposes.Far infrared30 mm – 1 mm3 K radiation fills universe.Thermal infrared3 mm – 30 mmThermal emission of earth and planets.Near infrared700 nm – 3mmSolar and stellar emission.Ещё 7 строк
What are the wavelengths of the electromagnetic spectrum?
RegionWavelengthFrequencyUltraviolet100 nm3 × 1015 HzVisible (blue)400 nm7.5 × 1014 HzVisible (red)700 nm4.3 × 1014 HzInfrared10000 nm3 × 1013 HzЕщё 9 строк
What is the electromagnetic spectrum used for?
Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.
How does the electromagnetic spectrum work?
Electromagnetic spectrum, the entire distribution of electromagnetic radiation according to frequency or wavelength. Although all electromagnetic waves travel at the speed of light in a vacuum, they do so at a wide range of frequencies, wavelengths, and photon energies.
Which color has the highest energy?