What is the meaning of infrared radiation?

Infrared (IR) radiation is a type of electromagnetic radiation (a wave with electricity) . The wave is longer than light which humans can see and shorter than microwaves. The word infrared means below red. It comes from the Latin word infra (meaning below) and the English word red.

What is the source of infrared radiation?

Since the primary source of infrared radiation is heat or thermal radiation, any object which has a temperature radiates in the infrared. Even objects that we think of as being very cold, such as an ice cube, emit infrared.

What is infrared radiation used for?

All objects on Earth emit IR radiation, or heat, which can be detected by electronic sensors, such as those used in night-vision goggles and infrared cameras. A simple example of such a sensor is the bolometer, which consists of a telescope with a temperature-sensitive resistor, or thermistor, at its focal point.

Is infrared radiation harmful to humans?

Over-exposure to certain types of electromagnetic radiation can be harmful. The higher the frequency of the radiation, the more damage it is likely to cause to the body: microwaves cause internal heating of body tissues. infrared radiation is felt as heat and causes skin burns.

What is the definition of infrared radiation?

Infrared radiation (IR), sometimes referred to simply as infrared, is a region of the electromagnetic radiation spectrum where wavelengths range from about 700 nanometers (nm) to 1 millimeter (mm). Infrared waves are longer than those of visible light, but shorter than those of radio waves.

What is meant by infrared radiation?

Light from the sun reaching earth. Infrared radiation is a type of electromagnetic radiation, which involves waves rather than particles. This means that, unlike conduction and convection, radiation can even pass through the vacuum of space.

What does infrared do to the body?

Infrared saunas are a type of sauna that use heat and light to help in relaxing and detoxifying your body. Also known as far-infrared saunas or near-infrared saunas, they emit infrared light waves that create heat in your body, thereby causing you to sweat and release stored toxins.

How can infrared technology be used to see in the dark?

Night vision goggles using image enhancement technology collect all the available light, including infrared light, and amplify it so that you can easily see what’s going on in the dark. The other way uses a technology called thermal imaging.

What are some examples of infrared waves?

Some examples of radiating infrared waves are burning charcoal, heat from an electric heater, fire or a radiator emitting warmth. Infrared radiation is a type of electromagnetic radiation that objects emit when they are hot but not quite hot enough to emit visible light.

What is infrared technology used for?

IR wireless is the use of wireless technology in devices or systems that convey data through infrared (IR) radiation. Infrared is electromagnetic energy at a wavelength or wavelengths somewhat longer than those of red light.

What is the color infrared?

Color-infrared (CIR) imagery uses a portion of the electromagnetic spectrum known as near infrared that ranges from 0.70 μm to 1.0 μm (0.7 to 1.0 micrometers or millionths of a meter), just beyond the wavelengths for the color red.

What is the other name for infrared radiation?

infrared radiation. Invisible radiation in the part of the electromagnetic spectrum characterized by wavelengths just longer than those of ordinary visible red light and shorter than those of microwaves or radio waves. (Compare ultraviolet radiation.)

How is infrared radiation used for communication?

Radio waves, microwaves, infrared and visible light can all be used for communication. Radio waves – are used to transmit television and radio programs. Microwaves – are used to transmit satellite television and for mobile phones. Infrared – is used to transmit information from remote controls.

What is the meaning of infrared light?

Infrared light is one type of light that is invisible to us. Gamma rays, X-rays, ultraviolet light, microwaves and radio waves are other types of invisible light. All of these rays and waves are the same type of electromagnetic energy. Your eyes cannot see light that has a wavelength longer than 0.7 microns.

What do the letters IR stand for?

AcronymDefinitionIRInternational RelationsIRInfraredIRInvestor RelationIRInjured Reserve (football)

What does infrared show?

Even objects that we think of as being very cold, such as an ice cube, emit infrared. When an object is not quite hot enough to radiate visible light, it will emit most of its energy in the infrared. For example, hot charcoal may not give off light but it does emit infrared radiation which we feel as heat.

What is infrared range?

Infrared radiation extends from the nominal red edge of the visible spectrum at 700 nanometers (nm) to 1 millimeter (mm). This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz. Below infrared is the microwave portion of the electromagnetic spectrum.

How infrared radiation is produced?

When an object is not quite hot enough to radiate visible light, it will emit most of its energy in the infrared. For example, hot charcoal may not give off light but it does emit infrared radiation which we feel as heat. The warmer the object, the more infrared radiation it emits.

What is an infrared heater?

An infrared heater or heat lamp is a body with a higher temperature which transfers energy to a body with a lower temperature through electromagnetic radiation. Depending on the temperature of the emitting body, the wavelength of the peak of the infrared radiation ranges from780 nm to 1 mm.

What is infrared heat in a sauna?

An infrared sauna is a type of sauna that uses light to create heat. This type of sauna is sometimes called a far-infrared sauna — “far” describes where the infrared waves fall on the light spectrum. A traditional sauna uses heat to warm the air, which in turn warms your body.

What is a synonym for infrared light?

infrared (adj.) having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end. Synonyms: invisible. unseeable.

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