Question

When the intensity of light shining on metal increase

Answer 1

s, the metal may heat up and start to emit electrons through the photoelectric effect. This process occurs when photons, or particles of light, collide with electrons in the metal and transfer their energy to them. If the energy of the photons is high enough, they can free electrons from the metal's surface, creating a flow of current. This effect is used in many modern technologies, including solar panels and photodetectors. Increasing the intensity of light can therefore lead to an increase in the number of electrons that are emitted, as long as the energy of the photons is sufficient to overcome the metal's binding energy.