What is the intensity of light after removing the second polarizer?

In summary, the conversation discusses a scenario where three polarizing filters are stacked and the intensity of unpolarized light passing through the stack is 75.0 W/cm^2. The question asks for the intensity of the light after the second polarizer is removed, with the polarizing axis of the filters at different angles. The relevant equation is I=Imaxcos2(θ).
  • #1
srwilliams444
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Homework Statement



Three polarizing filters are stacked, with the polarizing axis of the second and third filters at 23.0° and 62.0°, respectively, to that of the first. If unpolarized light is incident on the stack, the light has intensity 75.0 W/cm^2 after it passes through the stack. If the incident intensity is kept constant, what is the intensity of the light after it has passed through the stack if the second polarizer is removed?

Homework Equations


I=Imaxcos2(θ)


The Attempt at a Solution



I don't understand what the question is asking. Is the light passing through multiple times? And if it is, wouldn't it just be 75(cos262°)?
 
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  • #2
When the light reaches the third filter, intensity of the light is not 75 W/cm^2.
 

Related to What is the intensity of light after removing the second polarizer?

1. What is polarization of light?

Polarization of light refers to the direction of oscillation of the electromagnetic waves that make up light. When light is polarized, the waves are oscillating in a specific direction rather than in all directions.

2. How does light become polarized?

Light can become polarized through various processes, such as reflection, refraction, or scattering. These processes can cause the electromagnetic waves to align in a specific direction, resulting in the polarization of light.

3. What are the different types of polarization?

The three main types of polarization are linear, circular, and elliptical. Linear polarization occurs when the waves oscillate in a single plane, while circular polarization occurs when the waves rotate in a circular motion. Elliptical polarization is a combination of both linear and circular polarization.

4. Why is polarization important?

Polarization is important in many areas, including optics, telecommunications, and astronomy. It allows for the manipulation and control of light, which is crucial in various technologies and scientific research.

5. How is polarization measured?

Polarization is measured using a polarimeter, which detects the orientation and intensity of polarized light. Other methods for measuring polarization include using filters or analyzing the interference patterns of polarized light.

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