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What else can I help you with?
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.
Experiment to show that a dark surface is a ggod absorber of radiation while a white surface is a bad absorber of radiation?
Paint two otherwise identical objects, one with white paint, the other with black paint. Put both of them in the sunshine. The black object should get hot faster than the white one, because the absorbed heat energy gets converted to heat.
How can you prevent heat loss by using air gaps insulation and shiny surfaces?
Air gaps can trap pockets of still air, which is a poor conductor of heat, reducing heat transfer. Shiny surfaces can reflect heat radiation, reducing heat loss. By combining these two insulation techniques, you can effectively prevent heat loss in a space.
Is dull surface a good radiator of heat?
It is in fact the best radiator. Dull black is the best absorber and emitter. Then shiny black, followed by white, then silver. While the best reflector goes the other way around (silver's the best, then white, followed by shiny black, then dull black)
Work and heat both involve of energy. fill in the blank?
Transformation of energy
What are the best absorbers of heat surfaces?
smooth, dark colored
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.
Why dark surfaces are good absorbers of heat and shiny surfaces are poor absorbers of heat?
If you are talking in terms of the suns heat being absorbed by the surfaces then I have the answer. Shiny surfaces naturally deflect the suns rays where as dark surfaces are easy conductors of heat as they naturally catch the suns rays. You will notice with leather or print on a shirt that it gets hot because the rays have nowhere to go. A shiny surface will just deflect it back.
Which type of surfaces are poor radiators and absorber of heat?
Shiny metallic surfaces, polished surfaces, and light-colored surfaces are poor radiators and absorbers of heat. These surfaces reflect more heat energy than they absorb, which results in lower heat gain.
Which surfaces are poor radaitors and absorbers of heat?
Shiny and reflective surfaces like polished metals are poor radiators and absorbers of heat. This is because they reflect most of the incoming radiation rather than absorbing it. Absorption and emission of heat are higher in rough, dark, or matte surfaces compared to shiny ones.
What are the best absorbers of thermal radiation?
Materials that are dark and matte, such as black paint or carbon-based materials, are effective absorbers of thermal radiation. Additionally, metals like copper and aluminum are good thermal absorbers due to their high thermal conductivity.
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.]
Why does a firefighter wear a silver suit instead of a black suit?
Sliver surfaces reflect heat keeping the body of the firefighter cool, whereas black surfaces are good absorbers of heat.
What are the best surfaces for radiating heat?
Dark surfaces are the best.
Are silvered surfaces good or poor absorbers of infrared radiation?
Silvered surfaces are poor absorbers of infrared radiation. They have low emissivity in the infrared spectrum, which means they reflect rather than absorb infrared radiation. This property makes them useful for applications where minimizing heat absorption is desired.
What surfaces are better absorbers and emitters of thermal radiation?
Surfaces with dark, rough, and matte finishes are generally better absorbers and emitters of thermal radiation compared to surfaces with light, smooth, and shiny finishes. This is because dark, rough, and matte surfaces have higher emissivity values, which means they absorb and emit thermal radiation more efficiently.
Why black bodies are good absorbers of heat?
Black bodies are good absorbers of heat because they absorb a wider range of wavelengths of light, including visible and infrared. Their dark color allows them to absorb more light energy, converting it into heat more efficiently than lighter-colored surfaces that reflect more light. This absorption helps black bodies retain heat and warm up quickly in response to radiation.
