Do radio waves have the shortest wavelength?

Answer 1

First of all, your question is not worded all that well. When we speak of a wave, in this case an electromagnetic one (as opposed to one made of water perhaps), we tend to describe them quantitatively with certain numbers. One may speak of the frequency of the wave (measured in Hertz), the energy of a wave (in joules), or, in your case, the wavelength of a wave (in metres).

The electromagnetic spectrum is usually taught to span from radio waves (waves with relatively large wavelengths and low frequencies) to gamma rays (waves with relatively small wavelenths and very high frequencies). The misunderstanding you seem to have is that the electromagnetic spectrum stops at radio waves. It does not.

In theory, the electromagnetic spectrum is infinite and continuous. That is to say, there is no limit to how large a wavelength can be nor how small one can be. The electromagnetic spectrum susually stops at radio waves (with a typical wavelength ranging from 1 to 10 metres) because waves longer than these lose their practicality. In theory, they exist, but they simply are not as important to us than their shorter cousins!!!

Just as a side note, "long waves" are said to have a wavelength of around order 10^3 metres (or just around the order of a kilometre). Theoretically, I can imagine it possible to have a wave with a wavelength as long as the universe itself! Of course, as I mentioned earlier, such waves are of little practical value to us. As a result, yes it does have the "longest" waves.

Answer 2

Radio waves have the longest wavelength in the electromagnetic spectrum. From there it gets smaller into microwaves, infrared, visible, ultraviolet, X-ray, then gamma rays. To give you a straight out answer, no. Radio waves do not have the smallest wavelength. Gamma rays do.

Answer 3

Compared to what ? What do "low" and "short" mean to you ?

The product of (frequency) x (wavelength) is always the same number ... the

speed of the wave. So the lower frequencies must have longer wavelengths.

The lowest frequency / longest electromagnetic waves are the ones we call 'radio'.

Answer 4

The frequency band assigned by the FCC and international agreements to commercial FM stations use has a shorter wavelength than the band commercial AM stations use. Modulation mode doesn't determine wavelength; analog UHF television stations used, and aviation still uses, AM modulation and wavelengths even shorter than commercial FM.

Answer 5

No, radio waves have the longest wavelength. They are about 1km long.

Gamma rays have the shortest wavelength.

Radio waves have the longest wavelength but the lowest frequency

Answer 6

Yes