In an insulator, the valence band is
A)
half filled.
B)
more than half filled.
C)
less than half filled.
D)
separated from the conduction band by 5 or more eV.
E)
separated from the conduction band by 1 or less eV.
Question 2
Michelson and Morley concluded from the results of their experiment that
A)
the experiment was a failure since there was no detectable shift in the interference pattern.
B)
the experiment was successful in not detecting a shift in the interference pattern.
C)
the experiment was a failure since they detected a shift in the interference pattern.
D)
the experiment was successful in detecting a shift in the interference pattern.