gupta (sg36965) – reflection refraction imaging HW – yeazell – (55495)
1
This
print-out
should
have
47
questions.
Multiple-choice questions may continue on
the next column or page – find all choices
before answering.
001
10.0points
An object, slanted at an angle of 45
◦
, is
placed in front of a vertical plane mirror, as
shown.
Mirror
Which of the following shows the appar-
ent position and orientation of the object’s
image?
1.
image
2.
image
3.
image
4.
image
5.
image
6.
image
7.
image
8.
image
002(part1of3)10.0points
An object 3
.
3 cm high is placed 18
.
4 cm
from a convex mirror having a focal length
of
-
13
.
3 cm.
Find the position of the final image.
Answer in units of cm.
003(part2of3)10.0points
What is the magnification?
004(part3of3)10.0points
Calculate the height of the image.
Answer in units of cm.
005(part1of4)10.0points
An object is placed 21
.
9 cm in front of a
convex mirror of focal length 50 cm.
Note:
Do convex mirrors have a positive or
negative focal length?
What is its image position?
Answer in units of cm.
006(part2of4)10.0points
The magnification of the image in the previ-
ous question is:
007(part3of4)10.0points
With the arrangement discussed above, the
image is:
1.
real, inverted, bigger than object
2.
virtual, erect, smaller than object
3.
virtual, same size as object
4.
real, same size as object
5.
real, erect, smaller than object
6.
virtual, inverted, smaller than object
7.
virtual, inverted, bigger than object
gupta (sg36965) – reflection refraction imaging HW – yeazell – (55495)
2
8.
virtual, erect, bigger than object
9.
real, erect, bigger than object
008(part4of4)10.0points
An object is placed at 65
.
6 cm in front of this
mirror.
What is its image position?
009
10.0points
An object is
p
= 38
.
2 cm in front of a concave
mirror. Its real image height is 5 times larger
than the object height.
p
h
What is the radius of curvature of the mir-
ror?
Answer in units of cm.
010
10.0points
A concave mirror with a radius of curvature
of 1
.
7 m is illuminated by a candle located on
the symmetry axis 3
.
7 m from the mirror.
Where is the image of the candle?
Answer in units of m.
011
10.0points
If the speed of light through material Z is
2
.
5
×
10
8
m
/
s, what is this material’s index of
refraction? The speed of light in a vacuum is
3
×
10
8
m
/
s.
012
10.0points
Diamond has a high index of refraction at
about 2
.
4, which helps account for its sparkle.
How fast does light travel through a dia-
mond?
The speed of light in a vacuum is
3
×
10
8
m
/
s.
Answer in units of m
/
s.
013(part1of2)10.0points
