Can only certain light be used for certain things?e.g. the way that you can only use red light in a dark room and the

Can only certain light be used for certain things?e.g. the way that you can only use red light in a dark room and the way that leaves don’t absorb green light?

Posted on June 16, 2015 by in Question. Comments Off on Can only certain light be used for certain things?e.g. the way that you can only use red light in a dark room and the