[Answer] Electromagnetic waves

Answer: Do not require a medium(ex. light, microwaves, x-rays)
Electromagnetic waves
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Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials but also through the vacuum of space. In the 1860’s and 1870’s a Scottish scientist named James Clerk Maxwell developed a scientific theory to explain electromagnetic waves.
How are Electromagnetic waves formed? Generally an electric field is produced by a charged particle. A force is exerted by this electric field on other… The Magnetic field is produced by a moving charged particle. A force is exerted by this magnetic field on other moving… So the …
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an electromagnetic wave encounters the boundary between two difierent regions such as air 1 Technically all waves carry momentum but this momentum is suppressed by a factor of v=c where v is the speed of the wave and c is the speed of light.
Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human eye can only detect only a small portion of this spectrum called visible light. A radio detects a different portion of the spectrum and an x-ray machine uses yet another portion.
Types of Electromagnetic wave and their applications γ – Ray (Gamma Ray)- Useful in In detecting a fault crack flaws holes in metals. X Rays- Useful in X-Ray therapy. Ultraviolet Radiation- Helps In the study of molecular structure. Infrared Waves- Helps for taking photographs in fog or smo…

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