Practice Problems
Thin Lens Equation
Directions:
On this worksheet you will be able to practice using the thin lens equation with spherical lenses.
omit
Question 1
A 14-cm tall object is placed 33 cm from a converging lens that has a focal length of 14 cm. At what
distance
from the lens will the image be formed?
24.3 cm
4.1 cm
5.3 cm
19.0 cm
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Question 2
How tall is the image formed in
Question 1
?
8.1 cm
10.3 cm
1.7 cm
2.2 cm
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Question 3
Describe the image formed in
Question 1
.
virtual and upright
real and inverted
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Question 4
The same 14-cm tall object is now placed 33 cm from a diverging lens that has a focal length of -25 cm. At what
distance
from the lens will the image be formed?
1.7 cm
14.2 cm
58.0 cm
8.0 cm
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Question 5
How tall is the image formed in
Question 4
?
24.6 cm
0.7 cm
3.4 cm
6.0 cm
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Question 6
Describe the image formed in
Question 4
.
virtual and upright
real and inverted
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Question 7
Which image, that produced in
Question 3
or in
Question 6
, was formed by converging rays?
Question 6
Question 3
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Question 8
Which lens could be used to produce a virutal image taller than the object?
Question 1
Question 4
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Question 9
At what
distance
in front of the lens in
Question 8
should the 14-cm tall object be placed to produce a virtual image that is 4 times taller?
56.0 cm
3.5 cm
9.3 cm
10.5 cm
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