Question

i want the info about wave lengths n frequencies of red blue and green

Answer 1

Red : 620–750 nm (wave length); 400–484 THz(frequency)
Blue :450–495 nm (wave length) ;606–668 THz(frequency)
Green : 495–570 nm (wave length) ;526–606 THz(frequency)

Answer 2

Red = 620–750 nm :wave length and 400–484 THz :frequency
Blue = 450–495 nm :wave length and 606–668 THz :frequency
Green = 495–570 nm :wave length  and 526–606 THz :frequency
  i hope that this will help u ......................^_^