URL：https://content-grail-production.s3.amazonaws.com/quetsion-media/3310f3c6-de80-4178-b76c-8b72ab3af175-8989784_.JPG
掲載元：https://www.embibe.com/questions/Show-with-the-help-of-a-diagram-how-a-prism-breaks-the-white-light-into-seven-colours-of-VIBGYOR./EM8989784
