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The Photoelectric Effect
When light of sufficiently small wavelength is incident on a metal surface, electrons are ejected from the metal. This phenomenon is called as 'photoelectric effect' and the ejected electrons are called as 'photoelectrons..
The Photoelectric Effect
There are three ways in which electrons eject out of a material. They are (i) Thermionic emission (ii) Field emission (iii) Photo electric emission In all the above cases, energy is given to the material but in different forms. If given in the form of heat it is called as Thermionic emission, if in..
Photoelectric effect
When electromagnetic radiation strikes on the surface of alkali metals, they emit electrons. This is called the photoelectric effect. This occurs as alkali metals have low ionization energies, which allows the electrons to be easily ejected when exposed to light. Among alkali m..
De-Broglie Wavelength of an Electron
Substituting h = 6.62 x 10 - 3 4 Js, m = 9.1x 10 - 3 1 Kg and e=1.6x10 - 1 9 , we get For an electron accelerated through 100 volts, the wavelength is 1.225 x 10 - 1 0 m. Thermal neutrons also have wavelength of the same order say around 1.5 x 10 - 1 0 m. But in contrast the ..
Substituting h = 6.62 x 10 - 3 4 Js, m = 9.1x 10 - 3 1 Kg and e=1.6x10 - 1 9 , we get For an electron accelerated through 100 volts, the wavelength is 1.225 x 10 - 1 0 m. Thermal neutrons also have wavelength of the same order say around 1.5 x 10 - 1 0 m. But in contrast the ..Heating effect Animation
Thermal-Chemical Effects of Currents..
Thermal-Chemical Effects of Currents..Thermoelectric effect Animation Thermal-Chemical Effects of Currents..
Thermal-Chemical Effects of Currents..Heating effects Animation Electricity, Heating, Magnetic Effects..
Electricity, Heating, Magnetic Effects..Heat effect sulphur Animation Metals and Non-metals..
Metals and Non-metals..Effect pressure Animation Matter..
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