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Well, honey, let me break it down for you. A good absorber of radiation is also a good emitter. It's like a give and take relationship - what goes in, must come out. So, if something sucks up radiation like a sponge, you can bet your bottom dollar it's gonna spit it back out just as well.
What else can I help you with?
Is a good reflector of radiation a good emitter of radiation?
A good absorber of radiation is a good emitter. Radiation is the energy that that comes from a source and travels through space or through something. Some examples of radiation include light, heat and sound.
If a poor absorber of radiation were a good emitter its temperature could remain?
constant. Because it emits radiation well, it would lose heat efficiently and balance with the heat gained from absorbing radiation, resulting in a stable temperature.
Can an object be both a good absorber and good reflector at the same time why or why not?
No, you can be both good and evil. This is the same concept. The object is either a good absorber or a good reflector, and can not be both. Black is a good absorber, white is a good reflector.
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.
Why is silver a poor absorrber of heat?
Silver is a poor absorber of heat because it has a high reflectivity, meaning it reflects a high percentage of incident radiation rather than absorbing it. This property makes silver an efficient material for reflecting light and heat, rather than absorbing it.
Is a good reflector of radiation a good emitter of radiation?
A good absorber of radiation is a good emitter. Radiation is the energy that that comes from a source and travels through space or through something. Some examples of radiation include light, heat and sound.
If a poor absorber of radiation were a good emitter its temperature could remain?
constant. Because it emits radiation well, it would lose heat efficiently and balance with the heat gained from absorbing radiation, resulting in a stable temperature.
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 kind of surface should an object have to be a poor absorber of radiation?
A reflective one
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.
Is nitrogen a good or bad absorber of incoming solar radiation?
Yes, it absorbs solar radiation in the form of infrared rays rising from the surface of the earth. This heat is absorbed by the greenhouse gases (carbon dioxide (CO2) and methane (CH4)) and this is causing global warming.
Why is a poor reflector of heat also a good absorber?
Common sense. Is something is reflected, it cannot be absorbed, and vice versa. If something is a good absorber of heat, it tries to "hold onto" as much heat as possible; if something is a poor reflector of heat, it is bad at minimizing heat absorption.
Can an object be both a good absorber and good reflector at the same time why or why not?
No, you can be both good and evil. This is the same concept. The object is either a good absorber or a good reflector, and can not be both. Black is a good absorber, white is a good reflector.
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.
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.
Why do you prefer to wear clothes in summer and black in winter?
We are prefered to wear white clothes in summer because white colour is a poor absorber of heat and wear black clothes in summer because black colour is a good absorber of heat
Why is silver a poor absorrber of heat?
Silver is a poor absorber of heat because it has a high reflectivity, meaning it reflects a high percentage of incident radiation rather than absorbing it. This property makes silver an efficient material for reflecting light and heat, rather than absorbing it.
