Effect Of Photoelectric Effect Essay

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Contents
Introduction: 2
What is the photoelectric effect? 2
Origin of the photoelectric effect: 3
5
Modern day applications of the photoelectric effect: 5
Bibliography: 6
Contributors: 6

On how the photoelectric effect affects our daily lives

Christiaan Myburgh
Elmar Roux
Tijmen van der Steenhoven
Introduction:
The photoelectric effect has a big effect on our daily lives. It is used in several important technological devices, like solar panels and anti-burglary sensors. The effect was discovered over a long period of time and several scientists’ research contributed to it, but Albert Einstein was the scientists who figured out a correct formula to determine the energy of a photoelectron (the electron that is ejected because of the photon that hits the electron in the atom)
What is the photoelectric effect?
The photoelectric effect is when photons of light hits an atom. That photons energy is converted and ejects an electron. Each element needs a certain amount of frequency and wavelength to react in this manner.
How to test for this: a Metal plate is attached to a galvanometer with two wires, if a light with the right frequency and wavelength is shone upon it, a current will be registered with the galvanometer. (A Galvanometer measures the electric current and the flow of it.) The readings might show that electrons have been ejected. The ejected electrons flow through wires to the galvanometer and that causes a reading.

Origin of the photoelectric effect:
The first scientist to notice the photoelectric effect was Heinrich Herts, in 1887.
He observed that electrodes illuminated with ultraviolet light causes electrodes to spark more easily.
JJ Thomson was the first to identify the sparks the metals emitted as electron...

... middle of paper ...

...ns.wikidot.com/photoelectric-effect http://www.ask.com/question/photoelectric-effect-practical-uses http://www.scienceclarified.com/Oi-Ph/Photoelectric-Effect.html http://chemistry.about.com/od/electronicstructure/a/photoelectric-effect.htm Each one of these websites was accessed on the 19-04-2014
Contributors:

Christiaan Myburgh: interpreted the information and chose the phrased the final content. Typed report
Parents supplied debones subs, coffee as well as snacks.

Elmar Roux: Supplied the information and research.
Typed report
Supplied Steers, coffee, cookies.

Tijmen van der Steenhoven: Designed and typed presentation.
Typed report.
Supplied steak and chips!!!!, coffee.

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