Table of Contents
How do different colors absorb radiant energy?
The darker an object is the more radiant energy it absorbs and the less light it reflects. Lighter colors absorb less and reflect more, while darker colors absorb more and reflect less. I learned that the darker an object or material is, the more radiant energy is absorbed.
What color reflects the most radiant energy?
White objects reflect all visible wavelengths of light, while black objects absorb all visible wavelengths. As a result, these two colors attract the least and the most heat, respectively.
What color reflects heat radiation the best?
The more light the object absorbs, the more heat absorbed since light is energy. If you consider it a color, black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat.
How does Colour affect radiation?
In general, shiny coloured (e.g. white or silvery) and metallic surfaces emit or absorb radiation energy slowly since they reflect the radiation. Dark coloured (e.g. black) surfaces emit or absorb radiation energy more effectively. Solar panels are usually black in colour to increase radiation gain.
The combination of all these visible light colors is present in radiant energy from the sun. Black, or dark colors, on the other hand, are the absence of any of the visible light colors, so they are all absorbed, which translates to high absorption and warmer temperatures.
What color reflects sunlight best?
White light contains all the wavelengths of the visible spectrum, so when the color white is being reflected, that means all wavelengths are being reflected and none of them absorbed, making white the most reflective color.