The brightness has nothing to do with it. Colors closer to the violet end have more energy.
Violet light has the highest energy.
Violet (purple) is the highest energy color in the visible spectrum. It has a wavelength of about 400nm (4x10-8m), the lowest of all visible light.
Highest EnergyVioletBlueGreenYellowOrangeRedLowest Energy
Photons with higher energy correspond to electromagnetic radiation with higher frequency/shorter wavelength. In the visible band, the color with the highest frequency is the last one you can see on the VIOLET end of the spectrum.
a broader spectrum of visible light energy can be used for photosynthesis
Violet light has the highest energy.
Violet (purple) is the highest energy color in the visible spectrum. It has a wavelength of about 400nm (4x10-8m), the lowest of all visible light.
Highest EnergyVioletBlueGreenYellowOrangeRedLowest Energy
Photons with higher energy correspond to electromagnetic radiation with higher frequency/shorter wavelength. In the visible band, the color with the highest frequency is the last one you can see on the VIOLET end of the spectrum.
Right around the visible light band.
Red, I believe.
The visible spectrum : - red, orange, yellow, green, blue, violet. The blue end of the spectrum has a shorter wavelength, higher frequency and more energy than the red end of the spectrum. Thus violet light has the highest frequency and most energy.
The colors of the spectrum going from lowest energy to highest energy are violet, indigo, blue, green, yellow, orange, and red.
Within the range of visible light, it's the light with the shortest wavelength (highest frequency). That's theviolet end of the spectrum. Past that, ultraviolet light, which is invisible, has higher energy.
Electromagnetic
a broader spectrum of visible light energy can be used for photosynthesis
The electromagnetic waves that have the highest energy PER PHOTON are called gamma rays.