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Blackbodies.
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What is a perfect absorber or emitter of radiation called?
Blackbody
In general good absorbers of electromagnetic radiation are also good?
Yes, Good absorber of heat are good emitters of heat. And in both the way rate is same. This is Kirchoff's Law.
What is difference between emissivity and reflectance?
Reflectors just reflect the light absorbers actually absorb it.
The two principle absorbers of radiation emitted by earth's surface are carbon doxide and?
water vapor and carbon dioxide.
What absorbs ultraviolet radiation?
Ozone does as done carbon black and special chemicals - UV absorbers such as benzotriazoles and others also.
Why are carbon dioxide and water vapor called selective absorbers?
Any object that can specifically absorb and emit radiation (in the form of, say, infrared radiation), is called a selective absorbers. An example is: Snow. It is a good absorber of infrared radiation but poor absorber of sunligh. Object that selectively absorb radiation at some wavelength tend to radiate radiation at that same wavelength. CO2 and water vapors are both very good absorber of infrared radiation but at the same time poor absorber of different forms of solar radiation that are visible to us.
What are the best absorbers of thermal radiation?
Black, dull surfaces are the best absorbers of thermal radiation because the heat doesn't reflect off it unlike shiny surfaces.
What are the two ways energy is transferred to absorbers?
Conduction and Radiation.
What is a perfect absorber or emitter of radiation called?
Blackbody
What are good absorbers of heat?
Good absorbers of heat radiation are like basically materials which are dark in colour. Because for some reason they tend to absorb more radiation than light coloured materials.
Are silvered surfaces good or poor absorbers of infrared radiation?
Very very poor, they have a tendency of blowing you IP.
In general good absorbers of electromagnetic radiation are also good?
Yes, Good absorber of heat are good emitters of heat. And in both the way rate is same. This is Kirchoff's Law.
What are water vapor and carbon dioxide in earth's atmosphere good absorbers of?
infrared radiation
What is difference between emissivity and reflectance?
Reflectors just reflect the light absorbers actually absorb it.
What is a perfect black body?
A perfect blackbody absorbs all radiation incident on it and It emits electromagnetic radiation in the form of thermal radiation from its surface. OR A perfect blackbody is a perfect emitter and perfect absorber.
What two principle absorbers of radiation emitted by Earth's surface are carbon dioxide and?
Water vapor.
What are the two principle absorbers of radiation emitted by earth's suface?
carbon dioxide and water vapor
