Explanation for Question 47 From the Reading Section on the Official Sat Practice Test 6
Question 47 says according to the passage, 2 two-sided solar panels will likely raise efficiency. 3 How so we know that since this question starts off with the phrase, 4 according to the passage that the answer's going to come pretty directly from text 5 evidence here. So let's look back in the passage where they talk about two-sided 6 solar panels and see what we might be able to infer or conclude. 7 So they started talking about two-sided solar panels in 8 about the second to last paragraph here. 9 And the passage says this, 10 that someone is building a pilot manufacturing line for two-sided solar cell that 11 can absorb light from both the front and back. 12 The basic idea, which isn't new is that during some parts of the day 13 light falls on the land between rows of solar panels and a solar power 14 plant that light reflects onto the back of the panels and can be harvested 15 to increase the power output. So in this case, 16 they're talking a lot about light reflection, 17 so light reflects onto the back of the panels and 18 could be harvested to increase the power output. 19 So let's look and see which one of the answer choices indicates that 20 two-sided solar panels increase efficiency with a, 21 by something to do with reflection. 22 So we can see pretty quickly here that the correct answer for 47 is 23 going to be answered choice B by absorbing reflected light. 24 And again, just based on what the passage was saying, 25 that the light is hitting the ground and refl...