Author(s)
Mr. Pravin B. Shinde, Mrs. Vandana A. Patil
- Manuscript ID: 140288
- Volume: 2
- Issue: 6
- Pages: 340–344
Subject Area: Engineering
Abstract
The photoelectric effect is one of the most important discoveries in modern physics and played a central role in the development of quantum mechanics. The phenomenon refers to the emission of electrons from a material surface when electromagnetic radiation of sufficient frequency falls on it. Initially observed by Heinrich Hertz in 1887, the effect challenged classical wave theory and was successfully explained by Albert Einstein in 1905 using the concept of light quanta or photons. This review paper discusses the historical development, theoretical interpretation, experimental observations, scientific importance, and modern applications of the photoelectric effect. The paper also highlights the contributions of major scientists and the impact of the phenomenon on quantum physics and technological advancements.