Momentum
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Re: Momentum
The whole idea behind bringing momentum into the picture is to emphasize the fact that an uncertainty in velocity results in an uncertainty in momentum, since we know the mass of the object and it does not change. Moreover, we need the change in momentum to calculate the uncertainty because, according to Heisenberg's uncertainty indeterminacy equation:
(Indeterminacy in momentum) X (Indeterminacy in position) >= h/ 4 pi
(Indeterminacy in momentum) X (Indeterminacy in position) >= h/ 4 pi
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- Posts: 51
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Re: Momentum
Because for some objects (such as photon), they have no mass, but they have momentum. It will be non-sense to write it into delta x * m * delta v>= h/4pi for those objects.
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