## Uncertainty Value

$\Delta p \Delta x\geq \frac{h}{4\pi }$

Doreen Liu 4D
Posts: 54
Joined: Wed Sep 11, 2019 12:17 am

### Uncertainty Value

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?

Ryan Chang 1C
Posts: 105
Joined: Sat Aug 24, 2019 12:17 am

### Re: Uncertainty Value

The uncertainty value would be 0.2pm because the position could be at 2.34 to 2.36.

TarynD_1I
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

### Re: Uncertainty Value

the uncertainty value is 0.2 because the actual value would lie between 2.34 - 2.36.

105335337
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

### Re: Uncertainty Value

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.

105335337
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

### Re: Uncertainty Value

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.

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

### Re: Uncertainty Value

What happens if the uncertainty is less than h/4pi?

Michelle N - 2C
Posts: 117
Joined: Wed Sep 18, 2019 12:19 am

### Re: Uncertainty Value

Whenever there's a ±(number), the uncertainty would be taking into account both. :)

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

Tiffany_Chen 2K
Posts: 106
Joined: Fri Aug 30, 2019 12:15 am

### Re: Uncertainty Value

Arianna Perea 3H wrote:What happens if the uncertainty is less than h/4pi?

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

Quynh Vo
Posts: 45
Joined: Sun Sep 29, 2019 12:15 am

### Re: Uncertainty Value

The answer would be .2 because that's the value that is uncertain. It is the difference of the possible positions.