The photoelectric impact works in the event that we envision light to carry on like particles. to launch an electron, a metal surface must ingest a "packet" of vitality of a base size. Insufficient vitality implies no electron will be discharged. All that anyone could need vitality and you may get more than 1 electrons transmitted, however every electron will just have a specific measure of vitality. In the event that light were just wave-like, then any measure of light could bring about a surface to discharge electrons on the off chance that it were sparkled on it sufficiently long. since just certain shades of light worked for specific metals, every shade of light should have an extraordinary least "packet" of vitality, or quantum.
