Photoemission is a process during which electrons are ejected from a metal surface when exposed to electromagnetic radiation, (eg ultraviolet). If a clean, positively charged zinc plate is exposed ...
That light can be both particles and waves is one of the most illogical – but at the same time fundamental – characteristics of quantum mechanics. This is called wave-particle duality. The theory ...
In classical optics, for instance, a brighter light has more energy, and a greater amplitude of its electromagnetic wave. But, when it comes to ejecting an electron from a material via the ...