This preview shows pages 1–2. Sign up to view the full content.
Correct answers are underlined
[<br>]
The de Broglie wavelength of a free electron of kinetic energy 10 eV is:
A. 3.9×10
11
m
B. 1.3×10
10
m
C. 1.3×10
9
m
D.
3.9×10
10
m
[<br>]
Ψ
(
x
) is the wave function of a particle moving along the
x
axis. The probability to find it in the
interval [
a
,
b
] is:
A.
( )
( )
2
a
a
b
Ψ

B.
( )
( )
2
b
a
b
Ψ

C.
( )
2
b
a
x
dx
Ψ
∫
D.
( )
2
b
a
x dx
Ψ
∫
[<br>]
A particle in a 1d box is in the state of energy
E
3
. What is the probability to find it in the interval [0,
a
/3]?
A. 1/2
B. 1/4
C. 1/6
D.
1/3
[<br>]
The ground level of a particle in a 1d box is 2.0 eV. If the box width is doubled its ground level will
be:
A.
0.5 eV
B. 1.0 eV
C. 2.0 eV
D. 4.0 eV
[<br>]
Choose the
correct
statement for a quantum particle.
A. Its position and momentum can both be measured with great accuracies.
B. Its position and energy cannot both be measured with great accuracies.
C. Its position and energy can both be measured with great accuracies.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '08
 Kim
 Electromagnet

Click to edit the document details