Question:
The Arecibo telescope does not resemble what most of us think of when we hear the word telescope. Its reflective surface covers an area of 20 acres, which is quite remarkable. Dangling above it are towers and cables, sub-reflectors and antennas, all of which can be positioned using 26 motors to transmit radio waves and receive echoes with astonishing precision.
From the passage, it can be inferred that most telescopes
The Arecibo telescope does not resemble what most of us think of when we hear the word telescope. Its reflective surface covers an area of 20 acres, which is quite remarkable. Dangling above it are towers and cables, sub-reflectors and antennas, all of which can be positioned using 26 motors to transmit radio waves and receive echoes with astonishing precision.
From the passage, it can be inferred that most telescopes
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When interpreting a passage, focus on key descriptions that compare or contrast different items, in this case, the size and features of Arecibo relative to most telescopes.
Updated On: Nov 21, 2025
- are not as large as Arecibo
- do not have reflective surface
- cannot be re-positioned
- strictly have 26 motors
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the passage.
The passage describes the Arecibo telescope's large reflective surface, its unique structure involving towers, cables, sub-reflectors, and antennas, and its ability to be adjusted using 26 motors. Based on this, the passage compares Arecibo with most other telescopes.
Step 2: Explanation of the options.
(A) The passage implies that the Arecibo telescope is quite large (covering 20 acres), suggesting that most telescopes are not as large as Arecibo. (B) The passage explicitly mentions a reflective surface, making this option incorrect. (C) The passage mentions that the Arecibo telescope can be repositioned using 26 motors, indicating that most telescopes might not have this feature, but it doesn’t directly imply that they cannot be repositioned. (D) The passage mentions that Arecibo uses 26 motors, but it does not suggest that all telescopes strictly have 26 motors.
Step 3: Conclusion.
The correct answer is (A), as the passage implies that most telescopes are not as large as Arecibo.
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