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A rough surface has more surface area which allows more heat to be transferred.

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16y ago

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Is dull black a good emitter?

No, dull black is not a good emitter of heat. Black objects typically absorb heat well but do not emit it efficiently. Shiny or polished surfaces are better at emitting heat than dull or matte ones.


What produces more heat rough surface and a smooth or surface two smooth surfaces or two rough surfaces or two surfaces with oil between them?

Two rough surfaces in contact will produce more heat due to increased friction compared to two smooth surfaces or a smooth and rough surface. Adding oil between two surfaces will reduce friction and heat generation.


Is a good emitter of heat also a good reflector of heat?

Not necessarily. An object can be a good emitter of heat without being a good reflector of heat. The ability to emit and reflect heat depends on different properties of the material, such as surface texture and composition.


The best absorbers of heat are what kinds of surfaces?

Dark, rough surfaces are typically better absorbers of heat compared to light, smooth surfaces. This is because dark surfaces absorb more light and convert it into heat, while rough surfaces have a greater surface area for heat absorption.


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.


Why do rough surfaces absorb and radiate heat fast?

Rough surfaces have more surface area than smooth surfaces, allowing for more interactions with incoming heat radiation. This increased surface area leads to greater absorption of heat energy. Additionally, the irregularities in rough surfaces create more pathways for heat to be conducted and radiated away quickly.


What types of surfaces absorb heat?

Surfaces that are dark in color, rough, and have a low albedo (reflectivity) tend to absorb more heat. Common examples include asphalt, concrete, and dark-colored metals like iron. These surfaces absorb solar radiation and convert it into heat energy.


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.]


Which surfaces absorb heat?

Surfaces that are dark in color, have a rough texture, and are made of materials that retain heat well can absorb heat effectively. Materials such as asphalt, concrete, and dark metal surfaces tend to absorb heat more readily compared to lighter colored surfaces or those with a smooth finish.


Why does a black colour absorb more heat?

because its a good emitter/absorber of radiation


Why do different surfaces absorb heat differently?

Different surfaces absorb heat differently due to variations in their composition, color, and texture. Surfaces with darker colors tend to absorb more heat as they absorb a wider range of light wavelengths. Additionally, rough surfaces can absorb more heat than smooth surfaces because they have more surface area to absorb thermal energy.


What surfaces are good for absorbing infrared radiation?

Surfaces that are dark and rough tend to be good at absorbing infrared radiation. Materials like asphalt, rubber, and certain metals are known to absorb infrared radiation effectively due to their ability to trap and convert the radiation into heat energy.