What is the conclusion of the following argument?
Not only is the sky blue (as a result of scattering), but light coming from it is also partially polarized. You can readily observe this by placing a piece of Polaroid (for example, one lens of a pair of Polaroid sunglasses) in front of your eye and rotating it as you look at the sky on a clear day. You will notice a change in light intensity with the orientation of the Polaroid.
Answer (2)
The argument in the question is centered around the observation of the sky and light behavior. The conclusion of this argument is that light coming from the sky is partially polarized, as it demonstrates a change in light intensity when viewed through Polaroid material, such as one lens from a pair of Polaroid sunglasses, and rotated.
Here's a breakdown of the argument to help understand it better:
Premise: The sky is blue due to the scattering of light. Scattering refers to the process where small particles or molecules in the atmosphere cause incoming sunlight to scatter in different directions.
Premise: Light coming from the sky is partially polarized. Polarization is a property of waves, including light, that describes the orientation of their oscillations. Partially polarized light means that some directions of oscillation are more prevalent than others.
Observation Method: By using a piece of Polaroid material (such as sunglasses), you can observe a change in light intensity when you rotate it while looking at the sky on a clear day. This change indicates that the light is polarized because the Polaroid lens blocks certain orientations of light more effectively depending on its orientation.
Conclusion: The behavior of light intensity changing with the rotation of the Polaroid confirms that the light is indeed partially polarized as it emanates from the sky.
This conclusion is derived from how the observations align with the known behavior of polarized light. By rotating the Polaroid material and seeing changes in brightness, you're effectively demonstrating a fundamental property of polarized light.
The conclusion of the argument is that the light coming from the sky is partially polarized. This is demonstrated by the changes in light intensity as one rotates a Polaroid lens while looking at the sky. These observations are consistent with the principles of light scattering and polarization.
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