Print ViewSimultaneous Measurements of Position and Velocityby Sasa888 Tags: measurements, position, print, velocity, viewsimultaneous 

#1
Nov2208, 09:43 AM

P: 4

1. The problem statement, all variables and given/known data
The x coordinate of an electron is measured with an uncertainty of 0.200 mm. What is v_x, the x component of the electron's velocity, if the minimum percentage uncertainty in a simultaneous measurement of v_x is 1.00 %? Use the following expression for the uncertainty principle: (Delta x * Delta p_x )> or = h/2pi, where Delta x is the uncertainty in the x coordinate of a particle, Delta p_x is the particle's uncertainty in the x component of momentum, and where h is Planck's constant. My attempt: delta p_x = h/(2pi*delta x) delta p_x=m* delta v_x ?? i dnt know if i am allowed to do this.. also if it is allowed i dont know what to do next.. 



#2
Nov2208, 11:44 AM

P: 370

So far so good! Now the other thing you have been given is that delta v_x is 1% of v_x.




#3
Nov2208, 12:24 PM

P: 4

Ok im gonna try it
Thanks a lot! 


Register to reply 
Related Discussions  
Most accurate measurements of particle position?  General Physics  40  
Most accurate measurements of particle position?  General Physics  0 