Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
May 1212:00 PM EDT
-11:59 PM EDT
Make the most of your break with the most realistic GMAT™ prep. Take up to $700 off select products.
May 1501:00 PM IST
-11:00 AM IST
Start your journey with a fully customized action plan and work with a dedicated mentor to achieve a 735+ score.
May 1810:00 AM PDT
-11:00 AM PDT
Join us in a live GMAT practice session and solve 25 challenging GMAT questions with other test takers in timed conditions, covering GMAT Quant, Data Sufficiency, Data Insights, Reading Comprehension, and Critical Reasoning questions.- May 19
12:00 PM PDT
-01:00 PM PDT
Scoring 329 on the GRE is not always about using more books, more courses, or a longer study plan. In this episode of GRE Success Talks, Ashutosh shares his GRE preparation strategy, study plan, and test-day experience, explaining how he kept his prep.... - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
14 Sep 2024, 20:02
Kudos
Bookmarks
Radar is a system that uses radio waves to determine the distance, direction, and speed of objects. It comprises a transmitter that produces electromagnetic waves, a transmitting antenna, a receiving antenna (often the same for both functions), and a receiver and processor to analyze the object's properties.
The development of radar began in 1895 when Alexander Popov, a physics instructor in Russia, created a device to detect distant lightning using a coherer tube. In 1897, while testing communication between two ships, Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
In 1922, U.S. Navy researchers A. Hoyt Taylor and Leo C. Young placed a transmitter and receiver on opposite sides of the Potomac River and observed that passing ships caused the signal to fade. Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time. Eight years later, Lawrence A. Hyland at the Naval Research Laboratory (NRL) noticed similar signal fading caused by passing aircraft, leading to a patent application.
These early observations laid the foundation for the development of radar, which would later become a critical technology for detecting objects under various conditions, especially in military applications.
Based on the passage, which of the following can most reasonably be inferred about the early development of radar technology?
A. The development of radar technology was a direct result of Popov's continued research after his 1897 discovery.
B. U.S. Navy researchers A. Hoyt Taylor and Leo C. Young were the first to recognize the potential of radar for detecting objects.
C. The phenomenon of signal fading was a key observation that contributed to the eventual development of radar.
D. Radar technology was immediately recognized for its potential in military applications after Popov's initial discovery.
E. The concept of using radio waves to detect objects was largely ignored by researchers until the 1930s.
The development of radar began in 1895 when Alexander Popov, a physics instructor in Russia, created a device to detect distant lightning using a coherer tube. In 1897, while testing communication between two ships, Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
In 1922, U.S. Navy researchers A. Hoyt Taylor and Leo C. Young placed a transmitter and receiver on opposite sides of the Potomac River and observed that passing ships caused the signal to fade. Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time. Eight years later, Lawrence A. Hyland at the Naval Research Laboratory (NRL) noticed similar signal fading caused by passing aircraft, leading to a patent application.
These early observations laid the foundation for the development of radar, which would later become a critical technology for detecting objects under various conditions, especially in military applications.
Based on the passage, which of the following can most reasonably be inferred about the early development of radar technology?
A. The development of radar technology was a direct result of Popov's continued research after his 1897 discovery.
B. U.S. Navy researchers A. Hoyt Taylor and Leo C. Young were the first to recognize the potential of radar for detecting objects.
C. The phenomenon of signal fading was a key observation that contributed to the eventual development of radar.
D. Radar technology was immediately recognized for its potential in military applications after Popov's initial discovery.
E. The concept of using radio waves to detect objects was largely ignored by researchers until the 1930s.
14 Sep 2024, 20:02
Kudos
Bookmarks
Official Solution:
Radar is a system that uses radio waves to determine the distance, direction, and speed of objects. It comprises a transmitter that produces electromagnetic waves, a transmitting antenna, a receiving antenna (often the same for both functions), and a receiver and processor to analyze the object's properties.
The development of radar began in 1895 when Alexander Popov, a physics instructor in Russia, created a device to detect distant lightning using a coherer tube. In 1897, while testing communication between two ships, Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
In 1922, U.S. Navy researchers A. Hoyt Taylor and Leo C. Young placed a transmitter and receiver on opposite sides of the Potomac River and observed that passing ships caused the signal to fade. Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time. Eight years later, Lawrence A. Hyland at the Naval Research Laboratory (NRL) noticed similar signal fading caused by passing aircraft, leading to a patent application.
These early observations laid the foundation for the development of radar, which would later become a critical technology for detecting objects under various conditions, especially in military applications.
Based on the passage, which of the following can most reasonably be inferred about the early development of radar technology?
A. The development of radar technology was a direct result of Popov's continued research after his 1897 discovery.
B. U.S. Navy researchers A. Hoyt Taylor and Leo C. Young were the first to recognize the potential of radar for detecting objects.
C. The phenomenon of signal fading was a key observation that contributed to the eventual development of radar.
D. Radar technology was immediately recognized for its potential in military applications after Popov's initial discovery.
E. The concept of using radio waves to detect objects was largely ignored by researchers until the 1930s.
A. Incorrect. The passage states that Popov did not pursue his idea further after noticing the interference in 1897.
B. Incorrect. Popov had already suggested the potential for object detection in 1897, although he did not continue with the research.
C. Correct Answer. The passage discusses how signal fading was observed both by Popov and later by U.S. Navy researchers and Lawrence A. Hyland. These observations were crucial in recognizing the potential of using radio waves for object detection, leading to the development of radar technology.
D. Incorrect. The passage indicates that neither Popov's observation nor Taylor's report was immediately followed up with further development.
E. Incorrect. The passage shows that significant observations were made by researchers in the 1920s, even though they were not immediately developed into radar technology.
Answer: C
Radar is a system that uses radio waves to determine the distance, direction, and speed of objects. It comprises a transmitter that produces electromagnetic waves, a transmitting antenna, a receiving antenna (often the same for both functions), and a receiver and processor to analyze the object's properties.
The development of radar began in 1895 when Alexander Popov, a physics instructor in Russia, created a device to detect distant lightning using a coherer tube. In 1897, while testing communication between two ships, Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
In 1922, U.S. Navy researchers A. Hoyt Taylor and Leo C. Young placed a transmitter and receiver on opposite sides of the Potomac River and observed that passing ships caused the signal to fade. Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time. Eight years later, Lawrence A. Hyland at the Naval Research Laboratory (NRL) noticed similar signal fading caused by passing aircraft, leading to a patent application.
These early observations laid the foundation for the development of radar, which would later become a critical technology for detecting objects under various conditions, especially in military applications.
Based on the passage, which of the following can most reasonably be inferred about the early development of radar technology?
A. The development of radar technology was a direct result of Popov's continued research after his 1897 discovery.
B. U.S. Navy researchers A. Hoyt Taylor and Leo C. Young were the first to recognize the potential of radar for detecting objects.
C. The phenomenon of signal fading was a key observation that contributed to the eventual development of radar.
D. Radar technology was immediately recognized for its potential in military applications after Popov's initial discovery.
E. The concept of using radio waves to detect objects was largely ignored by researchers until the 1930s.
A. Incorrect. The passage states that Popov did not pursue his idea further after noticing the interference in 1897.
B. Incorrect. Popov had already suggested the potential for object detection in 1897, although he did not continue with the research.
C. Correct Answer. The passage discusses how signal fading was observed both by Popov and later by U.S. Navy researchers and Lawrence A. Hyland. These observations were crucial in recognizing the potential of using radio waves for object detection, leading to the development of radar technology.
D. Incorrect. The passage indicates that neither Popov's observation nor Taylor's report was immediately followed up with further development.
E. Incorrect. The passage shows that significant observations were made by researchers in the 1920s, even though they were not immediately developed into radar technology.
Answer: C
11 Sep 2025, 22:20
Kudos
Bookmarks
I was marking C only but got confused by these statements bb,
Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time
pls help
Popov noticed interference from a third ship and suggested it could be used for object detection, though he did not pursue this idea further.
Taylor reported that this could help detect ships in low visibility, but the Navy did not pursue the idea at that time
pls help
