The wavelength of an electromagnetic wave is its frequency divided into the speed of light which, for general purposes, is usually reckoned to be 3.0 x 10^8 meters per second.
For example, at 100 megahertz, the wavelength equals 3 meters because:
300,000,000 / 100,000,000 = 3
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All electromagnetic waves move at the speed of light (c = 3.00x108 m/s). Using the relationship that the speed of a wave is equal to the product of wavelength and frequency (v = lambda*f), we find that for an electromagnetic wave: c = lambda*f. That is, for an electromagnetic wave, the wavelength times the frequency is always exactly equal to the speed of light.
That's a lot like asking: "How many distances are there between here and Denver ?"
We like to split up the electromagnetic spectrum into sections, and give the sections
different names, like heat, light, radio, x-rays, etc. But those divisions aren't real, and
all electromagnetic radiation is the same physical phenomenon. Any time you name two
different wavelengths, then no matter how close together they are, I can always
name another one that's in between them. There are no edges or boundaries to
the categories. You can go ahead and invent new categories with new names if you
want to, and it doesn't matter how many.
The product of (wavelength) times (frequency) is equal to the speed of the wave.
Low frequency and less energetic.
Radio waves are the lowest frequency (and therefore longest wavelength) waves in the electromagnetic spectrum.
The electromagnetic spectrum organizes different types of electromagnetic waves according to their wavelength or frequency.
The wavelength decreases.The speed of light is the speed of all electromagnetic radiation (such as radio waves, light waves, gamma rays, etc.) in vacuum.The speed of light (c) is a physical constant with the exact value of 299,792,458 m/s.speed of light = frequency x wavelengthso when frequency increases, wavelength decreases .