What is Photoelectric effect || introduction of photoelectric effect

Photoelectric effect

Photoelectric Effect Here, Hertz and contemporary scientists observe Hertz and contemporary scientists on the anode plate: i. spark) continues to be generated.

He speculates that ultraviolet rays cause a large number of electromagnetic particles to form in the tube, which can be identified as the cause of sparks.

Experiments by other contemporary scientists have shown that the negative charge of the cathode plate decreases when purple rays collide with the super-plate. This can only happen if negative electromagnetic particles are emitted from the cathode plate.

In addition, a similar phenomenon occurs when a cathode made of alkali metals such as sodium, potassium, etc., emits purple, blue, and green light of relatively short wavelengths within the visible spectrum instead of ultraviolet rays.

This phenomenon of emission of negatively charged particles from a metal surface under the effect of this light is called photoelectric effect.

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