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There's no reason that infrared light should move at a speed different from the speed
of any other wavelength of light, or for that matter, the speed of any other form of
electromagnetic radiation. The speed of infrared light is simply the speed of light in
whatever medium it happens to find itself at the moment.
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∙ 12y ago
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Which one is faster infra red light or light?
All electromagnetic (EM) radiation travels at the same speed in a vacuum. However in a different medium, for example a glass triangular prism, the speed depends on the frequency of the EM radiation, and on the material it travels through. Generally for transparent materials, infra-red will travel faster than visible light. This frequency dependence of the speed is what causes dispersion and can be seen in rainbows.
Does ultraviolet light have a lower frequency than visible light?
No, "infra" means below, "ultra" means above. Infra red light is below red and ultra violet is above violet light.
How does heat from the sun reach us?
Sunlight or Solar Radiation is essentially photons, or packets of energy, emmited from the suns surface, which are able to travel through the vacuum of space at the speed of light. This comes to us in a range of wavelengths, including Visible light, Ultra violet and Infra red radiation.
Why is infra-red radiation rather than visible light used with optic fibers?
Infra-red has less energy the visible light, and so it takes less energy to create.
Which light has a lower frequency than an infra-red radiation?
Microwaves and radio waves.
How does the visible spectrum compare the the entire electromagnetic spectrum?
it is slap bang in the midde of the spectrum, with Ultra Violet light on one side, and Infra red on the other. In a vacuum it travels at the same speed as all of the others (the speed of light) UV has a shorter wavelength, and Infra red has a slightly longer one.
How is heat tranferred by radiation?
First of all it is important to note that heat and infra-red rays are NOT the same thing. When an object gets really hot it starts to glow, emitting red light at first, (hence the phrase: 'red hot') because red is the least frequency. Hotter objects emit light of higher frequency. A light bulb and the Sun are both examples of this. But infra-red rays are even lower in frequency than red light. Infra-red rays are emitted in the same way by objects at room temperature. That means you, your computer and everything around you are 'glowing' with this infra-red radiation. Infra-red rays carry energy between objects at the speed of light. This process causes relatively hot objects to cool down faster.
Which one is faster infra red light or light?
All electromagnetic (EM) radiation travels at the same speed in a vacuum. However in a different medium, for example a glass triangular prism, the speed depends on the frequency of the EM radiation, and on the material it travels through. Generally for transparent materials, infra-red will travel faster than visible light. This frequency dependence of the speed is what causes dispersion and can be seen in rainbows.
Does ultraviolet light have a lower frequency than visible light?
No, "infra" means below, "ultra" means above. Infra red light is below red and ultra violet is above violet light.
Who invented infrared night light?
Nobody invented infra-red or infra-red lights as such. Infra-red is radiant heat and is a natural phenomenon and is emitted by essentially all light sources. Infra-red devices with no visible light emissions, are, in their simplest form, radiant heaters. What was invented were ways to use IR for night-vision - often called image intensifiers.
How does heat from the sun reach us?
Sunlight or Solar Radiation is essentially photons, or packets of energy, emmited from the suns surface, which are able to travel through the vacuum of space at the speed of light. This comes to us in a range of wavelengths, including Visible light, Ultra violet and Infra red radiation.
What part of light is heat?
Infra red part of light is responsible for heat.
Would radioactive isotopes be seen as infra red light?
no
What band of light is below the visibile spectrum?
Infra Red
What is the speed of infrared rays?
Infra red is (relative to light) lower frequency/longer wavelength but it travels just as fast - the speed of light: about 300 000 000 meters per second (three hundred million).
Why is infra-red radiation rather than visible light used with optic fibers?
Infra-red has less energy the visible light, and so it takes less energy to create.
Why do you see a white spot on the camera-display when you make a photo of a remote-control?
Because remote controls use infra red light to communicate with the TV, stereo or what ever the remote is for. Infra red is a type of light we cannot see with our eyes, but cameras and video cameras turn infra red into visible light.
