Pound for pound, the cosmic or gamma ray is probably the most dangerous. It is an electromagnetic ray that has an extremely high frequency and an extremely short wavelength or period. (Frequency and wavelength are inversely proportional. Always.) These electromagnetic phenomena are generated at the sub-atomic level. Nuclear reactions or decay generates these little guys, as can subatomic particle interaction. And because they are of such high energies, they can shred the covalent bonds of the molecules that are the building blocks of living tissue. The have exceptional power to penetrate, and, because of their energies, can do a lot of damage. One photon of these heavy gamma rays can dissociate a whole flock of chemical bonds as it passes through a body and then can come right out the other side with no difficulty. A crime scene investigator who is down with physics would call it an electromagnetic through and through.
The most dangerous electromagnetic waves are the ones at the "top" or "high" end of the spectrum. These are the gamma rays, and they have the highest frequency, shortest wavelengths, the shortest periods, and the highest energy. A link can be found below.
gamma rays are the most dangerous
Gamma rays.
Gamma Rays
The total of all electromagnetic waves is called the electromagnetic spectrum. The electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visible light waves, ultraviolet radiation, x-rays, and gamma rays. Only visible light waves, which humans see as the band of colors from red to violet, are the portion of the spectrum visible to the human eye, although many other life forms are sensitive to infrared and possibly to other segments the spectrum.
Radio waves
Gamma waves :D
the electromagnetic waves with high frequency carries most energy ex :gamma rays
Gamma Rays
The waves with higher frequencies have more energy and the gamma rays have the most energy in the electromagnetic spectrum
Radio waves
The total of all electromagnetic waves is called the electromagnetic spectrum. The electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visible light waves, ultraviolet radiation, x-rays, and gamma rays. Only visible light waves, which humans see as the band of colors from red to violet, are the portion of the spectrum visible to the human eye, although many other life forms are sensitive to infrared and possibly to other segments the spectrum.
Gamma waves :D
Invisible. The only light is in the visible light section. lol. :)
the electromagnetic waves with high frequency carries most energy ex :gamma rays
You're free to give it any name that appeals to you. It's most commonly called the "electromagnetic spectrum" by others.
Most of the electromagnetic spectrum is not visible.
Most of the electromagnetic spectrum is not visible.
Every part of the electro-magnetic spectrum could be used for communications however the most exploited are long radio waves, short radio wave, and micro-waves.
The visible spectrum is a tiny, almost negligible slice of the electromagnetic spectrum. 'Sonar' has no place in this discussion. It's not even electromagnetic.