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ku1005
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Electron...achievable resolution?
An electron is confined inside a sphericial region of diametre 1.5nm.The speed of the electron is measured. Which of the following is not an achieveable resolution for the measurement?
A +/- 9.7*10^3 ms^-1
B +/- 3.86*10^4ms^-1
C +/- 7.72*10^4ms^-1
D +/- 1.21*10^5ms^-1
E +/- 1.54*10^5ms^-1
ANSWER = A
Im not sure really, since I don't know how to attempt this question, I think either the debroglie wavelength or uncertainity principle, but to be honest,I don't really know what to use.
I don't have a clue, would someone be able to at least start me in the right direction, thankyou.
Homework Statement
An electron is confined inside a sphericial region of diametre 1.5nm.The speed of the electron is measured. Which of the following is not an achieveable resolution for the measurement?
A +/- 9.7*10^3 ms^-1
B +/- 3.86*10^4ms^-1
C +/- 7.72*10^4ms^-1
D +/- 1.21*10^5ms^-1
E +/- 1.54*10^5ms^-1
ANSWER = A
Homework Equations
Im not sure really, since I don't know how to attempt this question, I think either the debroglie wavelength or uncertainity principle, but to be honest,I don't really know what to use.
The Attempt at a Solution
I don't have a clue, would someone be able to at least start me in the right direction, thankyou.