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Why in case of moving electrons quantum mechanics is used, while for moving cars we use newtonian mechanics?(physics 2nd sem)

on 2010-06-02 13:46:28   by Sahana   on Information Technology  2 answers

LiVeRpOoL FoOtBaLL cLuB

on 2010-06-03 09:30:00  

quantum mechanics deals with each and every particle of a system.in this case we are dealing with a single particle only i.e electron.hence we use quantum mechanics for it. however we use newtonian mechanics for a system having a collection of particles and we consider only the collective behavior of the system and not the behavior of each and every particle.a moving car(in this case) is a collection of particles(metal particles+paint particles etc etc).thus newtonian mechanics is applicable in this case!!

Sahana

on 2010-06-22 09:30:00  

thank u.