what is photoelectric effect and two laws of photoelectric effect
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The photoelectric effect is a phenomenon in physics. The effect is based on the idea that electromagnetic radiation is made of series of particals called photons. When a photon hits an electron on a metal surface, the electron can be emitted. The emitted electrons called photoelectric effect.
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✧✧Photoelectric Effect✧✧
↝Striking of light of a particular frequency on over metal surface electron get ejected from metal.
↝Electron is also know as Photoelectron and this phenomenon is known as Photoelectric effect.
↝In periodic table top to bottom ionisation energy decreases so photoelectric effect increases.
✧✧Order of Photoelectric✧✧
Li > Na > K > Rb > Cs
Be < Mg < Ca < Sr <Ba
Exception :- Be does not show Photoelectric effect..
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