Answer:
Blue light, shorter wavelength, brighter
Step-by-step explanation:
The color of a beam of light depends on the wavelength of the light
The wavelength of blue light is short and ranges from 450 nanometers to 495 nanometers, while the the wavelength of red light is longer and ranges from 620 to 750 nm
However, the energy of the photons that produce red light are lower than those that produce blue light, therefore, blue light have higher radiant energy, and is therefore, brighter than red light
Therefore;
Blue light have shorter wavelength, (and it is) brighter (than red light, when produced from a given area)