
Focal Length Determination Methods
Interactive Video
•
Physics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two graphical methods discussed for determining the focal length of a convex lens?
UV and 1/U 1/V methods
UV and XY methods
1/U 1/V and XY methods
UV and AB methods
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the UV graphical method, what is the significance of starting with the same value on both axes?
To ensure the graph is colorful
To make the graph easier to read
To ensure the graph is symmetric
To make the graph larger
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of drawing an angular bisector in the UV graphical method?
To make the graph more complex
To find the midpoint of the graph
To divide an angle into equal halves
To divide the graph into two parts
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the focal length calculated using the UV graphical method?
By measuring the length of the graph
By using the formula OC/2 or OB/2
By counting the number of points on the graph
By using the formula OC+OB
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the 1/U 1/V graphical method, what is plotted along the x-axis?
U
V
1/U
1/V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result when the straight line in the 1/U 1/V graph intersects the axes?
It forms a triangle
It gives the focal length
It creates a new graph
It shows the midpoint
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the focal length of the convex lens as determined by the 1/U 1/V graphical method?
0.094 cm
21.3 cm
10.63 cm
10.65 cm
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