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en.wikipedia.org/wiki/Infrared

Infrared radiation, or simply infrared or IR, is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore invisible, although it is sometimes loosely called infrared light. ... Like all EMR, IR carries radiant energy, and behaves both like a wave and like its quantum particle, the photon.

www.easynotecards.com/print_list/20224

Infrared waves are often called heat waves because they. A) emanate from relatively hot sources. B) consist of frequencies lower than those of visible light.

www.physicsforums.com/threads/infrared-as-heat-waves.443130

ture, which is why infrared waves are often called heat waves. ... so, are they called heat waves primarily because they comprise the majority of ...

www.explainthatstuff.com/electromagnetic-spectrum.html

Mar 12, 2017 ... Radio waves, X rays, gamma rays, and microwaves work in a very similar way. ... radiate (travel out) from where they're produced are called electromagnetic radiation. ... That's simply because any electromagnetic wave longer than a ... shorter frequency, there's a kind of invisible "hot light" called infrared.

cmb.physics.wisc.edu/pub/tutorial/spectrum.html

It separates all the types of light by wavelength because that directly relates to how energetic the wave is. ... There are many kinds of electromagnetic waves that you can't see. ... Microwaves are used in radar and also in your microwave appliance at home ... Your body gives off heat, so it is an emitter of infrared radiation.

www.edinformatics.com/math_science/electromagnetic_spectrum.htm

what are the different types of electromagnetic waves? ... Because the electric and magnetic fields are at right angles to the direction of the wave, ... radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. ... The Planck constant (denoted h), also called Planck's constant, is a physical constant ...

ncert.nic.in/ncerts/l/leph108.pdf

is the existence of electromagnetic waves, which are (coupled) time- varying electric ...... spectrum. Infrared waves are sometimes referred to as heat waves. This.

www.canon.com/technology/s_labo/light/001/08.html

These are collectively known as electromagnetic waves because they pass through ... a portion of the visible light, near-infrared rays and radio waves from space because the ... When a material absorbs the energy of light, the light is changed into heat, ... The earth is surrounded by layers of gases called the atmosphere.

www.olympus-lifescience.com/en/microscope-resource/primer/lightandcolor/electromagintro

Electromagnetic radiation, the larger family of wave-like phenomena to which ... of electromagnetic waves are often omitted, although they are understood to still exist. .... Because visible light is the most commonly discussed form of radiation, the .... So-called heat-seeking missiles used by the military are guided by infrared  ...