430 nm and 662nm. novanet
Carotenoids absorb light most efficiently in the blue-violet and blue-green regions of the spectrum. This is why they often appear red, orange, or yellow in color, as they absorb blue light and reflect longer wavelengths.
Dark surfaces are the best absorbers of heat because they absorb a wider range of wavelengths of light, converting them into heat energy. Light surfaces, on the other hand, reflect more light and thus absorb less heat.
The blue and the red spectrum of visible light is best absorbed by chlorophyll.http://www.ndpteachers.org/perit/Absorption%20Spectrum%20%5B2%5D.jpg
Red or blue light are the wavelengths of the visible light spectrum that are most absorbed by plants.
The light used during photosynthesis is typically in the form of sunlight, which contains a range of wavelengths. Plants primarily absorb light in the blue and red regions of the spectrum to power the process of photosynthesis. This light energy is captured by chlorophyll molecules in plant cells to convert carbon dioxide and water into glucose and oxygen.
Chlorophyll a primarily absorbs blue and red light wavelengths, while chlorophyll b absorbs blue and some green light wavelengths. Together, they work to capture sunlight energy for photosynthesis in plants.
Chlorophyll a primarily absorbs light in the blue (450-480 nm) and red (650-700 nm) regions of the electromagnetic spectrum. This absorption allows chlorophyll a to participate in photosynthesis, converting light energy into chemical energy for the plant.
Matte black because it absorbs most wavelengths.
White surfaces reflect blue light the best, as they reflect all visible wavelengths of light equally. Blue surfaces also reflect blue light well, but absorb light of other wavelengths.
Carotenoids absorb light most efficiently in the blue-violet and blue-green regions of the spectrum. This is why they often appear red, orange, or yellow in color, as they absorb blue light and reflect longer wavelengths.
Dark surfaces are the best absorbers of heat because they absorb a wider range of wavelengths of light, converting them into heat energy. Light surfaces, on the other hand, reflect more light and thus absorb less heat.
The blue and the red spectrum of visible light is best absorbed by chlorophyll.http://www.ndpteachers.org/perit/Absorption%20Spectrum%20%5B2%5D.jpg
Plant pigments, such as chlorophyll, trap sunlight and absorb specific wavelengths of light. These pigments then transfer this energy to the chloroplasts where photosynthesis takes place. During photosynthesis, the energy from sunlight is used to convert carbon dioxide and water into glucose and oxygen.
White light is made up of all the different colors of light, as can be seen when it is separated into these various wavelengths using a prism. The colors that we see are the wavelengths of light that are being reflected off of the objects we are looking at. Objects that are red will reflect only red wavelengths and will absorb the other wavelengths; objects that are blue will reflect only blue wavelengths and will absorb the other wavelengths; etc. Black objects absorb all visible wavelengths of light, which is why black asphalt gets so hot in the sunlight. White objects reflect all wavelengths of light. Therefore, a white umbrella would reflect the largest amount of light. However, this does not necessarily imply that it would be the best color to use for an umbrella because what really matters is how much light is transmitted through the umbrella to reach the shade below. The more light that gets through, the less effective the umbrella is in providing you with shade. Therefore, what really matters is how opaque the umbrella is, rather than what color the umbrella is. The opaqueness will be more characteristic of what material the umbrella is made of than what color it is. The fraction of the light that is transmitted will equal all the light that strikes the umbrella that is neither reflected nor absorbed. Thus, it is best to find an umbrella which combines high reflectivity with high opaqueness (generally a thick material) in order to keep the umbrella from heating up and stop the greatest percentage of the sun's rays from reaching you.
Dark colors such as black, dark brown, and dark blue are best at absorbing solar energy because they absorb a wider range of wavelengths across the visible and infrared spectrum. Lighter colors like white and light yellow reflect more sunlight and therefore absorb less solar energy.
430 nm
dark colours with the best one for this being black.