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good conductors are better emitters

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12y ago

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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.


Is it true that nonmetals are good conductors of heat and electricity?

No, nonmetals are generally poor conductors of heat and electricity. This is because they do not have freely moving electrons that can carry the heat or electric charge effectively. Metals, on the other hand, are good conductors due to the presence of delocalized electrons.


Are coins good or poor conductors of electricity?

Coins are made of metal and metals are good conductors of electricity.


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.


Are poor conductors of heat poor conductors of electricity?

Yes.


Are acidic solutions good or poor conductors of electricity?

Acidic solutions are good conductors of electricity because they contain free ions that can carry electric current. The presence of hydrogen ions (H+) in acidic solutions allows for the flow of electricity.


Materials that are poor conductors of heat?

Materials that are poor conductors of heat are Plastic and Wood "example."


Why are serving spoons conductors?

Serving spoons are conductors because they are made of metal and any metal is a conductor


Are shiny surfaces poor absorbers and poor emitters for infra-red radiation?

Shiny surfaces are poor absorbers of infrared radiation because they reflect rather than absorb it. However, they can still be good emitters of infrared radiation if they are close to being perfect blackbodies. The reflectivity of the surface plays a significant role in determining its emissivity for infrared radiation.


What distinguishes nonmetals from metals?

metals are shiny and good conductors of heat and electricity. Nonmetals are dull and poor conductors of heat and electricity.


Are all elements good electrical conductors?

No. Non-metals are very poor conductors, and with the exception of Neon, so are the gaseous elements.


What is a good conductor of heat called?

Metals are good conductors of heat. Plastics and wood are very poor.