That's correct! The electromagnetic spectrum is a continuous range of all electromagnetic radiation, arranged in order of increasing frequency and decreasing wavelength. Here's how it works:

* Low Frequency/Long Wavelength: Radio waves, microwaves

* Medium Frequency/Medium Wavelength: Infrared radiation, Visible light

* High Frequency/Short Wavelength: Ultraviolet radiation, X-rays, Gamma rays

So, visible light sits between the longer wavelength infrared radiation and the shorter wavelength ultraviolet radiation. Radar waves are a type of radio wave, which is even lower frequency than infrared, and X-rays are higher frequency than ultraviolet.