All light travels at the same speed
infrared, microwave, radio
No, they travel at the same speed.
Light is faster than sound
There are a few categories of electromagnetic with a shorter wavelength (higher frequency) than visible light. These include ultra-violet light, X-rays, and gamma rays.
Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.
infrared, microwave, radio
Radio, Microwave, infrared,Gamma rays, and X-rays
First off, frequency isn't a measure of speed, so infrared light is neither faster, nor slower than any other type of light. Second, infrared light is just that, LIGHT, so, its frequency is different than that of other lights, but it's not less than "light" because that wouldn't make any sense at all.With that cleared out of the way, yes, the frequency of infrared light is less than that of visible light.
No, they travel at the same speed.
Microwave ovens employ microwave radiation, which is lower in frequency than infrared radiation, to generate the heat in the food they cook. They don't use infrared radiation per se.
Infrared, microwave, and radio are electromagnetic radiation with lower frequencies than visible light.
Microwaves are wavelengths of light that are shorter than radio waves, but longer than infrared light waves. The wavelength range is 1 meter to 1mm. One particular wavelength is optimum for being absorbed by water, and this is what "microwave ovens" are tuned to produce. This is 2.45 GHz, which is about 12.2cm wavelength.
Electromagnetism is manifest along a continuum between slower radio waves and faster energy gamma waves. Visible light can be found in the range between infrared light (slower than waves of visible light) and ultraviolet light (faster than waves of visible light).
Frequency. Infrared light has a lower frequency; less than 400 Terahertz
Radio and microwaves are longer than visible light. So are heat (infrared) waves. Ultraviolet waves are shorter than visible light. So are X-rays and gamma rays.
Infra-red radiation has a wavelength adjacent to but longer than visible light.
Infrared light is light with a longer wavelength than red. Here are some sentences.Humans cannot see infrared light without special goggles.Infrared light creates a lot of heat.Many animals can see infrared light.