What is the de Broglie wavelength of a beam of electrons having
kinetic energy K = 100 eV
Question 1 options:
12 pm
120 pm
1.2 nm
12 nm
120 nm
The electron volt is a unit of
Question 2 options:
momentum.
voltage.
energy.
charge.
None of the above.
If a beam of monoenergetic electrons with an
energy of 78 eV are incident upon a crystal spacing (slit size) of
0.215 nm, what is the smallest angle for which we will see
constructive interference?
Question 3 options:
0 degrees
20 degrees
40 degrees
60 degrees
80 degrees
The potential energy associated with a Simple Harmonic
Oscillator is given by
Question 4 options:
a square wave.
a step-function.
a parabola.
a hyperbola.
I don't know.
If the ground-state energy of a particle-in-a-box system is 11.8
eV, what is the energy of the n=2 level?
Question 5 options:
0 eV
11.8 eV
23.6 eV
47.2 eV
106.2 eV