Effects of Photoelectric

Physics

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Photoelectric effect

When a metal surface is illuminated by a beam of light at a certain frequency, electrons can be emitted from the metal

Photoelectric effect diagram

Method used to study the characteristics of photoelectric

Arrange the photo cell in the circuit

Apparatus set-up to show photoelectric effect

Photoelectrons

Electrons emitted from the metal surface

Current generation in a photo cell circuit

Generated from the movement of photoelectrons from cathode to anode

The higher the frequency of the photon of light......

.......the higher the kinetic energy of the photoelectrons emitted from the metal surface

Threshold frequency

The minimum frequency required to produce photoelectric effect on a metal

An increase in the light intensity.....

......does not produce photoelectrons with a higher kinetic energy

Photoelectrons are emitted instantaneously.....

.......when a metal surface is illuminated by light

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