Chapter 32
Optical Images
Conceptual Problems
3
True or False
(a) The virtual image formed by a concave mirror is always smaller than the
object.
(b) A concave mirror always forms a virtual image.
(c) A convex mirror never forms a real image of a real obj
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1[5points]Thevoltagebetweenthecathode(negativelycharged)andthescreenofa
computermonitoris12kV.Ifweassumeaspeedofzeroforanelectronasitleavesthe
cathode,whatisitsspeedjustbeforeithitsthescreen?Electronchargeis1.61019C.
A)
Chapter 36
Atoms
Conceptual Problems
1
For the hydrogen atom, as n increases, does the spacing of adjacent
energy levels on an energy-level diagram increase or decrease?
Determine the Concept Examination of Figure 35-4 indicates that as n increases,
the s
Chapter 35
Applications of the Schrdinger Equation
Conceptual Problems
1
Sketch (a) the wave function and (b) the probability density function
for the n = 5 state of the finite square-well potential.
Determine the Concept Looking at the graphs in the text
Chapter R
Relativity
Conceptual Problems
1
You are standing on a corner and a friend is driving past in an
automobile. Each of you is wearing a wristwatch. Both of you note the times
when the car passes two different intersections and determine from your
Chapter 22
The Electric Field 2: Continuous Charge
Distributions
Conceptual Problems
1
[SSM] Figure 22-37 shows an L-shaped object that has sides that are
equal in length. Positive charge is distributed uniformly along the length of the
object. What is th
Chapter 30
Maxwells Equations and Electromagnetic Waves
Conceptual Problems
(a)
(b)
The displacement current has different units than the conduction current.
Displacement current only exists if the electric field in the region is
changing with time.
In an
Chapter 25
Electric Current and Direct-Current Circuits
Conceptual Problems
1
In our study of electrostatics, we concluded that no electric field exists
within the material of a conductor in electrostatic equilibrium. Why can we
discuss electric fields wi
Chapter 2
Motion in One Dimension
Conceptual Problems
1
What is the average velocity over the round trip of an object that is
launched straight up from the ground and falls straight back down to the ground?
Determine the Concept The "average velocity" is
Chapter 4
Newtons Laws
Conceptual Problems
1
While on a very smooth level transcontinental plane flight, your coffee
cup sits motionless on your tray. Are there forces acting on the cup? If so, how do
they differ from the forces that would be acting on th
Chapter 3
Motion in Two and Three Dimensions
Conceptual Problems
1
[SSM] Can the magnitude of the displacement of a particle be less
than the distance traveled by the particle along its path? Can its magnitude be
more than the distance traveled? Explain.
Name 5&4 U 770M Student ID
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1. [Multiple choice: 11 questions for 5 points each.]
Three point charges, Q1, Q2, and Q3, are fixed in place as shown.
Q, = + 6.0 nC. The sign and magnitude of Q2 are unknown.
Q3 is positive but its magnitude is unknow
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III.
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[20 points total] In all the circuits shown, all bulbs and batteries are identical, and all batteries are ideal.
A. [4 pts] Rank all bulbs in circuit I (shown at right) according to brightness,
from brightest to
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III.
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[20 points total] Two points, A and B, are both a distance s to the left of an insulating,
negatively charged rod with uniform charge density and total charge Q0. Point A is near
the end of the rod, and point B i
Solutions - MT 3
Phys. 122A A09
Fill in your name and student number on the bubble sheet.
Ph122A A09 60 points
You must mark your answers on this page and also ll in the bubble on the answer sheet.
1. (3 pts.) A magnet is moving with velocity v away from
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I. [15 points] Two infinite sheets carry currents flowing parallel to the y z plane. Both
sheets have N = 150 wires per meter.
The left sheet is located at x = 0 and
the right one at x = a = 0.5 m. Each
wire on the left sheet carries curr
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first
V. [20 points total] A W-shaped glass tube is partially filled with water, as
shown at right. The tube is at rest on a flat, level table, and both ends
are exposed to the atmosphere. Points A and E are at the same height,
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V.
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Insulating jacket
[20 points total] A cylinder contains n moles of an ideal gas that
is initially at room temperature. The cylinder is thermally
isolated from its surroundings and is sealed with a piston that is
free to
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C136
READ THIS ENTIRE PAGE NOW, BEFORE THE HALF-HOUR BELL.
Do not open the exam before the bell.
You will have 50 minutes after the bell to complet
Name, student#_
I.
[25 points] Uniform B field. A uniform magnetic field of magnitude B=2 T is
applied in a region of space.
1) [5 points] A wire carrying a current I=0.7 A is introduced at 45 degrees with respect
to the field, as shown. (The circuit is c
Name_student ID_
I. [15 points] Two infinite sheets carry currents flowing parallel to the y z plane. Both
sheets have N = 150 wires per meter.
The left sheet is located at x = 0 and
the right one at x = a = 0.5 m. Each
wire on the left sheet carries curr
k = 9 109 Nm2 /C2
0
me = 9.11 1031 kg
= 8.85 1012 C2 /Nm2
Mp = 1.67 1027 kg
1 Angstom = 108 cm = 1010 m
= E n dA
dV
dx
1
1
dr =
2
r
r
ns = 109 s
E = F /q
E = kQ/r2 r
E n dA = Q/
E=
0
dV = E dl
Work =
F dx
Q2
1
2
U=1
2 C = 2 CV
C = C0
= 3 108 m/s
C = 106
Density = Mass/Volume
P = g h
Pressure P = Force/Area
in a fluid
Atmospheric pressure is approximately 105 N/m2
1000 liters = 1m3
Density of water
= 1 gm/cm3 = 1000 kg/m3
Density of air = 1.29 kg/m3
0o C = 273.15 K
g = 9.8 m/s2
Heat Capacity: C = Q/T
1 ca
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III.
[20 points total] A sample of ideal gas is sealed in a cylinder that is closed by a movable piston. The
cylinder is fixed in place. The piston is attached to a compressed spring and moves without friction. The
s
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II.
[25 points total] Two identical containers are sealed with pistons that
are free to move without friction. One container is filled with air; the
other with helium. The containers have been sitting on the lab tabl
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III.
[20 points total] This question consists of two independent parts.
A. The U-tube shown at right is partially filled with water. The
surface of the water in the left-hand portion of the tube is not
shown. The sur
k = 9 109 Nm2 /C2
0
me = 9.11 1031 kg
Mp = 1.67 1027 kg
1 eV = 1.6 1019 J
1 Angstom = 108 cm = 1010 m
1
1
dr =
2
r
r
C = 106 C
ns = 109 s
E = F /q
F = kQq/r2 r
E = kQ/r2 r
= E n dA
k=
1
4 0
dV
dx
E n dA = Q/
E=
20
F dx
0
V =
KE = 1 mv 2
2
Q2
1
2
U=1
2
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III.
[25 points total] A non-conducting, thick spherical shell with inner radius a and
outer radius b has a total charge Qo spread uniformly throughout its volume.
Total charge Qo
A. In terms of variables given and fundament
AMPERES LAW or :,_ Name
HWl
. .-
, H.
3'? 1. Current is owing out of the page, through the Amper'lan 100p shown. 0011535 / x
the following student dialogue: cfw_I
I I I 0 1
Student 1: By the right hand rule The mgnec eld W' PW" mr'dwkwiu' to K .l'
The li