1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

MCQ problem

  1. Oct 30, 2007 #1
    1. The problem statement, all variables and given/known data

    It is an MCQ problem:
    How does the de Broglie wavelength λ associated with a particle compare to the size of the particle?
    (A) λ must be greater than the particle
    (B) λ must be less than he particle
    (C) λ could be larger and smaller than the particle

    2. Relevant equations

    I have used de Broglie's relation and Uncertainty principle.

    3. The attempt at a solution

    ∆x ∆p> h

    or, ∆x>(h/∆p)~λ as ∆p~p and ∆x is the particle's size in crude terms...

    Please check and tell me if I am correct
     
  2. jcsd
  3. Oct 30, 2007 #2

    clem

    User Avatar
    Science Advisor

    Use thet equation for the de Broglie wavelength, or just just use logic.
    How could the de Broglie wavelength depend on the size of the particle?
     
  4. Oct 30, 2007 #3
    It could depend possibly in the way I showed...
    Think of high energy proton beam probing very fine structure...say of the order of picometer or fm

    fm is the order of classical proton picture~ nuclear dimension...

    It is a problem from Resnick Halliday and I do not find any reason to suspect this problem...
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: MCQ problem
  1. Problem is. (Replies: 0)

  2. MCQ problem (Replies: 0)

  3. Compton scattering MCQ (Replies: 1)

Loading...