Polarization gives us evidence that light is sometimes best studied using a wave model of radiation. When light is passed through two polarizing filters placed at 90 degrees to each other, it is completely blocked. Interference is common with different types of waves, but not with particles, implying that light is acting like a wave in this experiment.
Which of the three sentences provides the reasoning in the passage? In 1–2 sentences, explain how you know.
If those three sentences at the beginning are the three sentences to which you refer then I don't see the "passage". It should be obvious to you that the question needs to be reordered or restated so as not to be confusing. Sorry but I don't understand.
Interference is common with different types of waves, but not with particles, implying that light is acting like a wave in this experiment.
Thanks to Anonymous.
The second sentence provides the reasoning in the passage. It explains that when light is passed through two polarizing filters placed at 90 degrees to each other and is completely blocked, it implies that light is acting like a wave in the experiment. The sentence establishes a cause-and-effect relationship between the phenomenon of complete blockage and the wave behavior of light.
