Heisenberg- In relation to wavelength


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chrisavalos-2L
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Joined: Fri Sep 28, 2018 12:18 am

Heisenberg- In relation to wavelength

Postby chrisavalos-2L » Sat Oct 27, 2018 3:05 pm

Question: If the uncertainty in the momentum increases for a given particle what does this mean for the uncertainty in its wavelength?

I was wondering what the relationship between these two uncertainties are and how one can potentially affect the other?

Ray Guo 4C
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Joined: Fri Sep 28, 2018 12:15 am

Re: Heisenberg- In relation to wavelength

Postby Ray Guo 4C » Sat Oct 27, 2018 3:07 pm

Because of λ=h/p, an increase in uncertainty of p increases the uncertainty of λ.

Karan Thaker 2L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Heisenberg- In relation to wavelength

Postby Karan Thaker 2L » Sat Oct 27, 2018 3:46 pm

I thought it would be the opposite? Because dividing planks constant by a larger number would lead to a smaller wavelength value? Because don't they have an indirect relationship?

Jonathan Zhao 4H
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Re: Heisenberg- In relation to wavelength

Postby Jonathan Zhao 4H » Sat Oct 27, 2018 3:50 pm

The uncertainty in momentum is inversely proportional to the uncertainty in wavelength, meaning a larger uncertainty in momentum will lead to a smaller uncertainty in wavelength, and vice versa.

Danny Zhang 4L
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Re: Heisenberg- In relation to wavelength

Postby Danny Zhang 4L » Sat Oct 27, 2018 5:14 pm

Because of the inverse relationship between momentum and wavelength shown in the de Broglie equation(λ=h/p), increasing the uncertainty of momentum will decrease the uncertainty of wavelength.

Danny Zhang 4L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Heisenberg- In relation to wavelength

Postby Danny Zhang 4L » Sat Oct 27, 2018 5:14 pm

Because of the inverse relationship between momentum and wavelength shown in the de Broglie equation(λ=h/p), increasing the uncertainty of momentum will decrease the uncertainty of wavelength.

Sapna Ramappa 1J
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Joined: Fri Sep 28, 2018 12:24 am

Re: Heisenberg- In relation to wavelength

Postby Sapna Ramappa 1J » Sat Oct 27, 2018 6:15 pm

chrisavalos- 1K wrote:Question: If the uncertainty in the momentum increases for a given particle what does this mean for the uncertainty in its wavelength?

I was wondering what the relationship between these two uncertainties are and how one can potentially affect the other?


Because there's an inverse relationship between momentum and wavelength, an increase in the uncertainty of momentum will entail a decrease in the uncertainty of wavelength.

Akhil Paladugu 3G
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

Re: Heisenberg- In relation to wavelength

Postby Akhil Paladugu 3G » Mon Oct 29, 2018 11:29 pm

Because of the inverse relationship between momentum (p) and wavelength(lambda) is given in De Broglie's equation, lambda=h/p, therefore, when p is increased, the value of lambda decreases.


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