CAT 2025 Slot 2 VARC Question 21

Multiple choice (+3 / −1) · Reading Comprehension · Science · Try it, then check the answer and solution below.

CAT 2025 Slot 2VARCReading Comprehension • ScienceModerate
Reading Comprehension Passage•~514 words
Different sciences exhibit different science cultures and practices. For example, in astronomy, observation - until what is today called the new astronomy - had always been limited to what could be seen within the limits of optical light. Indeed, until early modernity the limits to optical light were also limits of what humans could themselves see within their limited and relative perceptual spectrum of human vision. With early modernity and the invention of lensed optical instruments - telescopes - astronomers could begin to observe phenomena never seen before. Magnification and resolution began to allow what was previously imperceptible to be perceived - but within the familiar limits of optical vision. Galileo, having learned of the Dutch invention of a telescope by Hans Lippershey, went on to build some hundred of his own, improving from the Dutch 3x to nearly 30x telescopes - which turn out to be the limit of magnificational power without chromatic distortion. And it was with his own telescopes that he made the observations launching early modern astronomy (phases of Venus, satellites of Jupiter, etc.). Isaac Newton's later improvement with reflecting telescopes expanded upon the magnificational-resolution capacity of optical observation; and, from Newton to the twentieth century, improvement continued on to the later very large array of light telescopes today - following the usual technological trajectory of "more-is-better" but still remaining within the limits of the light spectrum. Today's astronomy has now had the benefit of some four centuries of optical telescopy. The "new astronomy," however, opens the full known electromagnetic spectrum to observation, beginning with the accidental discovery of radio astronomy early in the twentieth century, and leading today to the diverse variety of EMS telescopes which can explore the range from gamma to radio waves. Thus, astronomy, now outfitted with new instruments, "smart" adaptive optics, very large arrays, etc., illustrates one style of instrumentally embodied science - a technoscience. Of course astronomy, with the very recent exceptions of probes to solar system bodies (Moon, Mars, Venus, asteroids), remains largely a "receptive" science, dependent upon instrumentation which can detect and receive emissions.
Contemporary biology displays a quite different instrument array and, according to Evelyn Fox-Keller, also a different scientific culture. She cites her own experience, coming from mathematical physics into microbiology, and takes account of the distinctive instrumental culture in her Making Sense of Life (2002). Here, particularly with the development of biotechnology, instrumentation is far more interventional than in the astronomy case. Microscopic instrumentation can be and often is interventional in style: "gene-splicing" and other techniques of biotechnology, while still in their infancy, are clearly part of the interventional trajectory of biological instrumentation. Yet, in both disciplines, the sciences involved are today highly instrumentalized and could not progress successfully without constant improvements upon the respective instrumental trajectories. So, minimalistically, one may conclude that the sciences are technologically, instrumentally embodied. But the styles of embodiment differ, and perhaps the last of the scientific disciplines to move into such technical embodiment is mathematics, which only contemporarily has come to rely more and more upon the computational machinery now in common use.
Which one of the following observations is a valid conclusion to draw from the statement that "the sciences involved are today highly instrumentalised and could not progress successfully without constant improvements upon the respective instrumental trajectories"?
Answer and solution

Answer: A) In both astronomy and microbiology, progress has been the consequence of improvements in the instruments they use.

Step-by-Step Explanation:
1
Passage Context & Central Idea: The passage discusses how different scientific disciplines, particularly astronomy and biology, have become highly reliant on instruments for progress. It highlights that advancements in these fields are driven by improvements in their respective tools and technologies.
2
Question Stem Analysis: The question asks for a valid conclusion based on the statement that sciences depend on instrumental improvements for progress. It requires identifying which option directly supports this idea.
3
Option Analysis:
Option A: Correctly states that progress in both astronomy and microbiology comes from instrument improvements, aligning with the passage.
Option B: Talks about constants, which isn't addressed in the passage.
Option C: Focuses on trajectories but is vague and not directly tied to instrumentation.
Option D: Emphasizes respect for instruments rather than their improvement, which is less central.
4
Conclusion: Option A is the best fit as it directly reflects the passage's emphasis on instrument-driven progress in both fields.
Correct Answer: A

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