In photosynthesis, the most useful colors of the light spectrum are
green, yellow,& orange
red, violet&blue
infrared, red,& yellow
red, white& blue
The elements of sets A , B and C are all colours as follows:
A = { Red , Orange , Yellow , Brown } ,
B = { Blue , Yellow , Green , Brown } ,
C = { Black , Brown , White , Grey }
Then, A U B U C is
Photosynthesis takes place fastest in which color light- blue, yellow ,red, green or white(sunlight)?