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Is electromagnetic radiation made of photons or the perpendicular oscillation of magnetic and electric fields?
Electromagnetic radiation (EMR) is the oscillation and movement of magnetic and electric fields which are perpendicular to each other. This is the way in which electromagnetic radiation is propagated. Photons are another term for higher energy EMR, and it could also be argued that photons make up some forms of electromagnetic radiation.
What absorbs ultraviolet radiation?
Ozone does as done carbon black and special chemicals - UV absorbers such as benzotriazoles and others also.
What part of the electromagnetic spectrum can be sensed without technology?
We have detectors on our bodies to detect electromagnetic radiation that we refer to as 'light',and also radiation in the far infrared that we refer to as 'heat'.A lot of people think we're also able to detect EM radiation in other bands, but scientific experimentationdoesn't support that.Yet ? ~ ~ oooweeeooo ~ ~ ~ ~
Does electromagnetic radiation include only visible light waves?
No, electromagnetic radiation includes a wide range of wavelengths beyond visible light, such as radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. Each type of electromagnetic wave has a different frequency and energy level.
What is difference between emissivity and reflectance?
Emissivity refers to the efficiency with which an object emits thermal radiation, ranging from 0 to 1. Reflectance, on the other hand, pertains to the ability of a surface to reflect light or radiation, also ranging from 0 to 1. In essence, emissivity relates to the emission of radiation from an object, while reflectance involves the reflection of incident light.
What Materials which are good absorbers of radiation are also good?
Materials that are good absorbers of radiation are also good emitters of radiation. This is known as Kirchhoff's law of thermal radiation. Good absorbers like black surfaces are also good emitters, while poor absorbers are poor emitters. This is why black objects heat up quickly in the sun and cool down quickly at night.
What are the two ways energy is transferred to absorbers?
Energy can be transferred to absorbers through radiation, where energy is emitted in the form of electromagnetic waves, such as light. Energy can also be transferred through conduction, where heat is directly transferred through physical contact between objects of different temperatures.
What is transferred by electromagnet waves?
Electromagnetic radiation is transferred by electromagnetic waves. Electromagnetic radiation is a fundamental phenomenon of electromagnetism.
Recall that good absorbers are good emitters?
Yes, according to Kirchhoff's law of thermal radiation, good absorbers are good emitters of radiation at a given wavelength. This means that materials that efficiently absorb incoming radiation also emit radiation effectively at the same wavelength.
Why good absorbers are good emmiters?
Good absorbers of radiation are also good emitters because they can absorb energy from their surroundings and then emit that energy in the form of radiation. This is governed by Kirchhoff's law, which states that objects that absorb radiation well at a specific wavelength are also good emitters at that same wavelength.
What does electricity cause?
electricity causes an electromagnetic field, also radiation.
Which is the only kind of nuclear radiation that is also an electromagnetic wave?
The gamma wave is.
Is electromagnetic radiation made of photons or the perpendicular oscillation of magnetic and electric fields?
Electromagnetic radiation (EMR) is the oscillation and movement of magnetic and electric fields which are perpendicular to each other. This is the way in which electromagnetic radiation is propagated. Photons are another term for higher energy EMR, and it could also be argued that photons make up some forms of electromagnetic radiation.
Can heat energy also be light energy?
Yes. Heat energy is a form of electromagnetic radiation, like infrared Radiation.
Is radiation the direct transfer of energy by electromagnetic?
It's the emission of electromagnetic energy from something, not the transfer. That em-radiation could travel for ever across the universe, never interacting with anything ever again and it would still be radiation.________________________________________________________Not all radiation is electromagnetic engery. Electromagnetic energy is transfered by way of photons. Photons are emited through gamma radiation and black body radiation. Nuclear decay of alpha particles and beta particles (which are also considered radiations) are actual particles that have mass, and are not electromagnetic radiation.
Is a good absorber of radiation a good emitter or a poor emitter?
A good absorber of radiation is typically a good emitter as well. This is known as Kirchhoff's law of thermal radiation, which states that good absorbers are also good emitters at a given wavelength.
What is heat radiation know en by?
Heat radiation is also known as thermal radiation. It is the transfer of heat energy in the form of electromagnetic waves, typically in the infrared region of the electromagnetic spectrum. This type of energy transfer does not require a medium and can occur through a vacuum.
