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Uncertainty Value

Posted: Thu Oct 17, 2019 6:06 pm
by Doreen Liu 4D
When the uncertainty is some value plus minus another value (e.g. 2.35±0.1 pm), is the uncertainty value 0.1 or is the value altogether the uncertainty?

Re: Uncertainty Value

Posted: Thu Oct 17, 2019 6:30 pm
by Ryan Chang 1C
The uncertainty value would be 0.2pm because the position could be at 2.34 to 2.36.

Re: Uncertainty Value

Posted: Thu Oct 17, 2019 10:46 pm
by TarynD_1I
the uncertainty value is 0.2 because the actual value would lie between 2.34 - 2.36.

Re: Uncertainty Value

Posted: Thu Oct 17, 2019 10:51 pm
by 105335337
The uncertainty value is 0.2 because you add .1 and subtract .1 from the given value, giving a total uncertainty value of 0.2.

Re: Uncertainty Value

Posted: Thu Oct 17, 2019 10:51 pm
by 105335337
The uncertainty value is 0.2 because you add .1 and subtract .1 from the given value, giving a total uncertainty value of 0.2.

Re: Uncertainty Value

Posted: Fri Oct 18, 2019 6:26 pm
by Arianna Perea 3H
What happens if the uncertainty is less than h/4pi?

Re: Uncertainty Value

Posted: Sat Oct 19, 2019 10:48 pm
by Michelle N - 2C
Whenever there's a ±(number), the uncertainty would be taking into account both. :)

So in your case, ±0.1, it would be 0.2.

Re: Uncertainty Value

Posted: Sat Oct 19, 2019 11:24 pm
by Tiffany_Chen 2K
Arianna Perea 3H wrote:What happens if the uncertainty is less than h/4pi?


The best scenario would be equal to h/4pi.

Re: Uncertainty Value

Posted: Sun Oct 20, 2019 8:40 pm
by Quynh Vo
The answer would be .2 because that's the value that is uncertain. It is the difference of the possible positions.