What happens to light when it passes through an analyzer?

Malus's Law and Light Intensity

Interactive Video
•
Physics, Science, Mathematics
•
11th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It becomes unpolarized.
Its intensity remains unchanged.
It changes color.
Its intensity is reduced.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between light intensity and the angle of the analyzer according to Malus's Law?
Intensity is proportional to sin²θ.
Intensity is proportional to cos²θ.
Intensity is proportional to tan²θ.
Intensity is proportional to θ.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of Malus's Law, what does I₀ represent?
The maximum intensity of polarized light.
The initial intensity of unpolarized light.
The initial amplitude of light.
The angle of the analyzer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the amplitude of light related to its intensity?
Intensity is proportional to the square of the amplitude.
Intensity is proportional to the amplitude.
Intensity is inversely proportional to the amplitude.
Intensity is unrelated to the amplitude.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mathematical expression for Malus's Law?
I = I₀ sin²θ
I = I₀ tan²θ
I = I₀ cos²θ
I = I₀ θ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what angle does the intensity of polarized light become half according to Malus's Law?
30 degrees
45 degrees
60 degrees
90 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of cosθ when the intensity is halved?
1/√2
0
1/2
1
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