- #1
manofphysics
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Why do we not consider quantum effects when we deal with motion of electrons in a Cathode Ray Oscilloscope, or in a cyclotron?
We derive various relations using classical physics which turn out to be quite accurate in the laboratory.How is this possible when it is expressly known that classical physics fails when analyzing the motion of isolated particles of atomic size like elctrons?
[ for eg. F=qE => ma=qE and thus accn. of the chargedparticle is found.This should NOT work in case of an electron due to unceratinity principle]
We derive various relations using classical physics which turn out to be quite accurate in the laboratory.How is this possible when it is expressly known that classical physics fails when analyzing the motion of isolated particles of atomic size like elctrons?
[ for eg. F=qE => ma=qE and thus accn. of the chargedparticle is found.This should NOT work in case of an electron due to unceratinity principle]