Cod liver oil - a potentially toxic source of Vitamin A: Hypervitaminosis A can result from ingestion of too much vitamin A from diet, supplements, or prescription medications.
This visible light region consists of a spectrum of wavelengths that range from approximately 700 nanometers (abbreviated nm) to approximately 400 nm. Expressed in more familiar units, the range of wavelengths extends from 7 x 10 -7 meter to 4 x 10 -7 meter.
The visible light frequency range is at least 400 THz. No contest -- visible light is at â¦ least 15 million times higher in frequency. Energy = Planck's constant * frequency. Hence visible light carries a higher energy.