Is Percentage of Uncertainty Equivalent to Uncertainty?

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Percentage of uncertainty does not equate to uncertainty without context. To determine the percentage of uncertainty in momentum, the Heisenberg uncertainty principle must be applied, requiring a known momentum value. The percentage is calculated by multiplying the uncertainty by 100 and dividing by the measured momentum. The discussion raises questions about the definitions of delta p and p, suggesting a need for clarity on their relationship. Understanding these concepts is crucial for accurate calculations in quantum mechanics.
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Does percentage of uncertainty = uncertainty?
 
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In general I would say no. But we really need some context to be able to give you a helpfull answer.
 
The uncertainty of a particle's position is .100 nm. So, I'm looking for the percentage of uncertainty in its momentum.
 
CollectiveRocker said:
The uncertainty of a particle's position is .100 nm. So, I'm looking for the percentage of uncertainty in its momentum.

U can find the uncertainty in momentum applying Heisenberg principle,but u need to specify the momentum itself,as the procentage is usually defined as the product of the uncertainty and 100 devided by the measured momentum.
 
Where does that rule come from?
 
Because by that definition,aren't delta p and p equal?
 

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