- #1
UrbanXrisis
- 1,196
- 1
electrons in an electron microscope are accelerated form rest to a momentum making their wavelength 0.06 nm.
1. what is the voltage Vo needed for this?
2. What is the final electron velocity?
For 1.
[tex]E=\frac{hc}{\lambda}=\frac{1240eVnm}{0.06 nm}[/tex]
solve for E
For 2.
[tex]E=.5mv^2[/tex]
Solve for v plugging in E from #1 and m=mass of electron
is this the correct thought process?
1. what is the voltage Vo needed for this?
2. What is the final electron velocity?
For 1.
[tex]E=\frac{hc}{\lambda}=\frac{1240eVnm}{0.06 nm}[/tex]
solve for E
For 2.
[tex]E=.5mv^2[/tex]
Solve for v plugging in E from #1 and m=mass of electron
is this the correct thought process?