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The minimum energy required by an electron to escape from a (metal) surface
A force between moving charges
The photoelectric effect is the stimulated emission of electrons due to the irradiation of photons onto the surface of a metal. The increase in the frequency of the photons doesn’t lead to an increase in ...
First we write down the relevant information given in the question. Re = 6,400km = 6.4 x 106 m, Me = 6 x 1024 kg.For the projectile to escape the Earths gravit...
-cyclotron consists of 2 dees connected to an AC power supply. When an electron is released from a source in the centre of the cyclotron, it is initially attracted towards the positively charged dee, due ...
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