On what bases colour is determines FREQUENCY or WAVE LENGTH We know that each colour has its own wave length but we also know that when a wave length passes through a medium the wave length changes. then why doesn’t the beam of light (i.e layzer light) that has red colour doesn’t change its colour when it pass through water or other medium? whydoesn’t its colour change

Av Akanksh , 8 Years ago

Grade 11