Lab 9: Refraction
Physics 194
Page 1 of 1
IV. HOMEWORK SOLUTIONS
You have a diverging (concave) lens, an object and a screen. Where should you place the object so that its image is:
1. inverted and smaller than
Physics Lab Homework #2 1. The different hypotheses of how AIDS was transmitted from apes to humans are: a. African hunters came in contact with money blood (examples were also given, such as if a hunter butchered a money and got some of its blood in
Exam #3 practice problems solutions
Physics 204 summer 2008
1. NASA makes an announcement that the Hubble Space Telescope has detected a signal from an alien probe. When
the probe sent the signal it was 0.20ly (light years 1 ) away and headed towards Eart
Homework 6 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 5 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 2 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 1 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Lab 9: Refraction
Physics 194
Page 1 of 1
IV. HOMEWORK SOLUTIONS
You have a diverging (concave) lens, an object and a screen. Where should you place the object so that its image is:
1. inverted and smaller than the object
2. inverted and larger th
Lab homework 7
This geometry task may be helpful for devising a
A
mathematical procedure for next weeks lab.
A triangle has legs of known lengths 2L and h. Find
the length of the line segment x which is parallel to
a
side h.
B
b
C
Solution us
1. A galvanometer is used to measure electrical current. You can use one to measure the
current in a circuit.
2. Diagram shown here.
3. When a current passes through the coil (which is
in a magnetic field), a torque that is proportional
to the current is
Lab Homework 3
Solutions
The most important idea to keep in mind when answering this question is that the reading on the
scale indicates the force that the scale exerts on the luggage (the normal force). From Newtons
Third Law, we know that the scale will
Lab homework 8
Suppose in a lab you want to find the index of refraction of a prism using Snells law
(see the figure). You need to measure the angle of refraction .
So you measure the distances h and d by a ruler, then the angle would be equal to
tan( ) =
Homework 3 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 4 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 8 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Lab 10: Applications of Lenses
Physics 194
Page 1 of 1
VI. HOMEWORK SOLUTIONS
1. In a testing experiment:
a. What is the difference between a hypothesis and a prediction?
b. How do you decide if the outcome of
HW 6: Oersted and the Discovery of Electromagnetism by Frederick Gregory
1. According to Oersted, this was a testing experiment. He claimed in the quoted
excerpt that he previously observed variations of the magnetic needle during a
thunderstorm and used
Lab Homework 5
Solution
Measuring the volume of the brick
a) First method
If we assume that the brick is a perfect rectangle, then its volume is
V = (width) * (length) * (height) = 12.8*31.3*8.9 = 3566 cm 3
Lets find the relative uncertainties of the widt
Lab homework 8
Suppose in a lab you want to find the index of refraction of a prism using Snells law
(see the figure). You need to measure the angle of refraction .
So you measure the distances h and d by a ruler, then the angle would be equal to
tan( ) =
Lab homework 7
This geometry task may be helpful for devising a
A
mathematical procedure for next weeks lab.
A triangle has legs of known lengths 2L and h. Find
the length of the line segment x which is parall
Homework 10 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 12 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 11 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 13 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 9 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Homework 7 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that
Physics 194
Exam #2 practice problems solutions
1. You have a basketball hoop in your driveway but youve always suspected that it isnt the official 10 feet above the
ground. You dont have a meter stick or tape measure around so you cant measure it dire