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What type of surfaces are good radiators of heat?
Dull black surfaces they are also best at absorbing it as well. [Shiny and silvery or white surfaces are poor radiators and absorbers of heat. However they are very good in reflecting heat radiation.]
Are silvered surfaces good or poor absorbers of infrared radiation?
Very very poor, they have a tendency of blowing you IP.
Is dull black surface is a good radiator of heat?
Yes, it is. As dull and black surfaces are the best emitters as well as the best absorbers of radiation. Hope my answer is good enough to be stand up your question needs.
Who emits more radiation a white body or a black body?
Good absorbers of radiation are also effective emitters. Thus, a black body, which more readily absorbs infrared radiation also emits it more readily.
Is a good absorber of radiation a good emitter or a poor emitter?
It is a good emitter, as you can not have a good absorber, which isn't a good emitter. Dark, Matt surfaces are good emitters and absorbers e.g. a saucepan.
What type of surfaces are good radiators of heat?
Dull black surfaces they are also best at absorbing it as well. [Shiny and silvery or white surfaces are poor radiators and absorbers of heat. However they are very good in reflecting heat radiation.]
Are silvered surfaces good or poor absorbers of infrared radiation?
Very very poor, they have a tendency of blowing you IP.
What are water vapor and carbon dioxide in earth's atmosphere good absorbers of?
infrared radiation
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.
Does human body emit infrared radiation?
Most of the radiation emitted by the human body is infrared radiation and is invisible. if you press a remote button in front of a camera (cellphone or webcam may work) you will see an infrared ray!
A heat lamp produces what radiation?
Heat travels in the form of infrared radiation. You don't use radiation todetect radiation. You use a detector that responds to the type of radiationyou're trying to detect. In the case of infrared radiation, your skin makes anexcellent detector.
Is dull black surface is a good radiator of heat?
Yes, it is. As dull and black surfaces are the best emitters as well as the best absorbers of radiation. Hope my answer is good enough to be stand up your question needs.
What surfaces are good reflectors of infared radiation?
Personally i could not give a flying f*ck
What is one example of where energy transfer by radiation is occurring?
A good example is the energy we receive from the Sun. We receive this energy mainly as electromagnetic radiation, such as visible light and infrared.
between white and silver surfaces, which one is the best emitter of radiation?
The best emitter of radiation depends on the type of radiation you are referring to. Generally, when discussing thermal radiation, a "blackbody" is considered the best emitter. A blackbody is an idealized object that absorbs all incident radiation and emits radiation perfectly according to its temperature. In real-world scenarios, there is a concept called "emissivity," which quantifies how effectively an object emits thermal radiation compared to a blackbody at the same temperature. The emissivity of an object ranges between 0 and 1, with 1 being a perfect blackbody. Regarding white and silver surfaces: White surfaces: White surfaces tend to have high reflectivity and low emissivity. This means they are good at reflecting incoming radiation and do not emit thermal radiation as effectively. In terms of thermal radiation emission, they are not the best emitters. Silver surfaces: Silver surfaces also have high reflectivity but generally have higher emissivity compared to white surfaces. They emit more thermal radiation than white surfaces, but they are still not as effective emitters as a perfect blackbody. In conclusion, between white and silver surfaces, silver surfaces would be the better emitter of thermal radiation due to their higher emissivity. However, neither of them is as efficient as a blackbody emitter. Keep in mind that the exact emissivity values can vary based on the specific properties and conditions of the materials used.
Who emits more radiation a white body or a black body?
Good absorbers of radiation are also effective emitters. Thus, a black body, which more readily absorbs infrared radiation also emits it more readily.
What are the materials used for absorbing solar energy?
Any good absorber or conductor of short wave radiation like air, black substances etc. absorbs solar radiation finely as the sun emits short waves in the form of solar radiation.
