Electromagnetic radiation is a form of energy that is frequently known together light. Normally speaking, we say the light travel in waves, and also all electromagnetic radiation travel at the very same speed i m sorry is around 3.0 * 108 meter per second through a vacuum. We contact this the "speed of light"; nothing have the right to move faster than the rate of light.

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 A wavelength is one bicycle of a wave, and also we measure it as the distance between any type of two continuous peaks that a wave.The peak is the highest suggest of the wave, and the trough is the lowest allude of the wave.

## Frequency

So as soon as we talk about light traveling in waves, we can additionally talk about frequency, or the variety of wavelengths the passa details point in a provided length of time. We commonly measure this together the variety of wavelength cycles the pass every second. The units for this measurement room Hertz (hz).So, if the wavelength of a light wave is shorter, that means that the frequency will certainly be higher because one cycle have the right to pass in a much shorter amount the time. This method that much more cycles can pass by the collection point in 1 second. Likewise, a light tide that has actually a longer wavelength will have actually a reduced frequency since each cycle takes a longer time to complete.

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This is an instance of a much shorter wavelength. Prefer we claimed earlier, if you were an observer stand on the black line, and also you to be so rapid that you can count the number of wave peaks that passed girlfriend in one second, girlfriend would uncover that the variety of wave peaks that you counted would be higher than a longer wavelength. This is an instance of a much longer wavelength. Expect you placed yourself on the heat again and you begin clocking the number of wave peaks the pass you. Wait a minute, not virtually so countless wave peaks have gone through in one second like before with the shorter wavelength. That method that longer wavelengths have actually a lower frequency.
Conclusion: a longer wavelength means a reduced frequency, and also a much shorter wavelength means a greater frequency!

## How go this relate come the Electromagnetic Spectrum?

Like we stated before, light deserve to be defined by that is wavelength. Because that example, the human being eye deserve to detect light at wavelengths between 400 come 900 nanometers. The is why we call this component of the electromagnetic spectrum visible light. Light waves with shorter wavelengths (and higher frequencies) additionally have more energy, so types of light like gamma rays, X-rays, and ultraviolet light are more energetic than visible light, and also infrared, microwaves, and radio tide are much less energetic than the irradiate in the clearly shows spectrum.To go back to the electromagnetic spectrum.