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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
Hi Karishma,
I got confused here to identify "the earliest scientific investigator"

Isn't it right to compare "Wigner and Eisenbud" vs "Raymond Chiao and colleagues"?
I took Wigner and Eisenbud as the earlier investigators

What am I misunderstanding?

Greetings,
Kevin

KarishmaB wrote:
saby1410 wrote:
VeritasKarishma

please explain qustion 3

option c & D



Q543. RC00301-04. Which of the following statements about the earliest scientific investigators of quantum tunneling can be inferred from the passage?

(A) They found it difficult to increase barrier thickness continually.
(B) They anticipated the later results of Chiao and his colleagues.
(C) They did not suppose that tunneling particles could travel faster than light.
(D) They were unable to observe instances of successful tunneling.
(E) They made use of photons to study the phenomenon of tunneling.

Note this:
... Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

Though quantum tunnelling was noted in 1932, it was much later than faster than light travel concept was proposed.
So option (C) is correct.

Nowhere in the passage does it say that they were not able to observe instances initially.
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
This passage is a classic example of easy to read & understand but difficult to answer one. :cry:
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
ManishKM1 wrote:
GMATNinja wrote:
kunal1608 wrote:
Could experts please elaborate on the 3rd question explaining why exactly is option D incorrect .

The official explanation says "The passage indicates that by 1932, investigators had noted the rapidity of quantum tunneling; although this does not entail that they observed the phenomenon, it is consistent with their having been able to do so."

Quote:
Which of the following statements about the earliest scientific investigators of quantum tunneling can be inferred from the passage?
A) They found it difficult to increase barrier thickness continually.
B) They anticipated the later results of Chiao and his colleagues.
C) They did not suppose that tunneling particles could travel faster than light.
D) They were unable to observe instances of successful tunneling.
E) They made use of photons to study the phenomenon of tunneling.

Refer to the following lines:
Quote:
Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

What do we know about the earliest scientific investigators of quantum tunneling? We know that they noted the extreme rapidity of quantum tunneling. We also know that they did NOT hypothesize that tunneling particles sometimes travel faster than light.

From that information, can we infer that "they were unable to observe instances of successful tunneling."? Not necessarily. Perhaps they observed instances of successful tunneling and perhaps they did not (as described in the OE, "although this does not entail that they observed the phenomenon, it is consistent with their having been able to do so"). Regardless, we certainly cannot infer that they were UNABLE to observe instances of successful tunneling.

In other words, we know that they might have observed instances of successful tunneling, but we cannot infer that they were unable to do so.

I hope that helps explain why (D) must be eliminated!


GMATNinja
I have a similar question, when they noted QT in 1932, how can C be a correct option? "They did not suppose that tunneling particles could travel faster than light." They noted it but were unable to hypothesis. Can you pls help.


GMATNinja I also have the same question . How is C the answer. By following the POE?
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Most attempts by physicists to send particles faster than the speed of [#permalink]
GMATNinja wrote:
kunal1608 wrote:
Could experts please elaborate on the 3rd question explaining why exactly is option D incorrect .

The official explanation says "The passage indicates that by 1932, investigators had noted the rapidity of quantum tunneling; although this does not entail that they observed the phenomenon, it is consistent with their having been able to do so."

Quote:
Which of the following statements about the earliest scientific investigators of quantum tunneling can be inferred from the passage?
A) They found it difficult to increase barrier thickness continually.
B) They anticipated the later results of Chiao and his colleagues.
C) They did not suppose that tunneling particles could travel faster than light.
D) They were unable to observe instances of successful tunneling.
E) They made use of photons to study the phenomenon of tunneling.

Refer to the following lines:
Quote:
Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

What do we know about the earliest scientific investigators of quantum tunneling? We know that they noted the extreme rapidity of quantum tunneling. We also know that they did NOT hypothesize that tunneling particles sometimes travel faster than light.

From that information, can we infer that "they were unable to observe instances of successful tunneling."? Not necessarily. Perhaps they observed instances of successful tunneling and perhaps they did not (as described in the OE, "although this does not entail that they observed the phenomenon, it is consistent with their having been able to do so"). Regardless, we certainly cannot infer that they were UNABLE to observe instances of successful tunneling.

In other words, we know that they might have observed instances of successful tunneling, but we cannot infer that they were unable to do so.

I hope that helps explain why (D) must be eliminated!

GMATNinja KarishmaB MartyTargetTestPrep
Quote:
Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

It says that earliest investigators were aware of tunneling , but W&E hypothesized something. It can imply that maybe they anticipated certain behaviour such as the one in hypothesis, but were unable to postulate it maybe due to limitations wrt maths/physics understanding.
Eg- In earlier times, everyone was aware of gravity(not the term but the effects of it) but Newton was the one who hypothesized it.
So doesn't it imply that they might have anticipated something similar to what Chiao and his colleagues did but were unable to hypothesize due the limitations I pointed?
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
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rickyric395 wrote:
GMATNinja KarishmaB MartyTargetTestPrep
Quote:
Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

It says that earliest investigators were aware of tunneling , but W&E hypothesized something. It can imply that maybe they anticipated certain behaviour such as the one in hypothesis, but were unable to postulate it maybe due to limitations wrt maths/physics understanding.
Eg- In earlier times, everyone was aware of gravity(not the term but the effects of it) but Newton was the one who hypothesized it.
So doesn't it imply that they might have anticipated something similar to what Chiao and his colleagues did but were unable to hypothesize due the limitations I pointed?


Question 3:
Q543. RC00301-04. Which of the following statements about the earliest scientific investigators of quantum tunneling can be inferred from the passage?

(A) They found it difficult to increase barrier thickness continually.
(B) They anticipated the later results of Chiao and his colleagues.
(C) They did not suppose that tunneling particles could travel faster than light.
(D) They were unable to observe instances of successful tunneling.
(E) They made use of photons to study the phenomenon of tunneling.

First of all, we need to figure out who "the earliest scientific investigators of quantum tunneling" were.
The earliest investigators mentioned are "Though the extreme rapidity of quantum tunneling was noted as early as 1932, (these were the earliest investigators)... not until 1955 was it hypothesized—by Wigner and Eisenbud (they came afterwards)—that tunneling particles sometimes travel faster than light.

So the passage says that the earliest investigators did note the extreme rapidity of quantum tunneling but only much later was it hypothesised (theorised) that the particles could travel faster than light. That means that the earliest investigators did not suppose that tunneling particles could travel faster than light. That thought occurred to other investigators later.
Hence (C) is correct.

No other option makes sense.

rickyric395 - There is no reason to believe that it did come to their mind but they did not say anything because of some limitations. They did not say any such thing is possible (even if they could not prove it, they just had to hypothesize) and that implies that they did not think that it was possible - whatever the limitations.
If anyone before Newton had pointed out that there is a certain force that Earth exerts on all things, then he/she would have hypothesized gravity first, not Newton. No one can be credited with a thought until and unless they speak out. It is as good as they never had that thought. We can infer that they did not think of it.
Also, is there any other option that comes even close?
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
KarishmaB wrote:
rickyric395 wrote:
GMATNinja KarishmaB MartyTargetTestPrep
Quote:
Though the extreme rapidity of quantum tunneling was noted as early as 1932, not until 1955 was it hypothesized—by Wigner and Eisenbud—that tunneling particles sometimes travel faster than light.

It says that earliest investigators were aware of tunneling , but W&E hypothesized something. It can imply that maybe they anticipated certain behaviour such as the one in hypothesis, but were unable to postulate it maybe due to limitations wrt maths/physics understanding.
Eg- In earlier times, everyone was aware of gravity(not the term but the effects of it) but Newton was the one who hypothesized it.
So doesn't it imply that they might have anticipated something similar to what Chiao and his colleagues did but were unable to hypothesize due the limitations I pointed?


Question 3:
Q543. RC00301-04. Which of the following statements about the earliest scientific investigators of quantum tunneling can be inferred from the passage?

(A) They found it difficult to increase barrier thickness continually.
(B) They anticipated the later results of Chiao and his colleagues.
(C) They did not suppose that tunneling particles could travel faster than light.
(D) They were unable to observe instances of successful tunneling.
(E) They made use of photons to study the phenomenon of tunneling.

First of all, we need to figure out who "the earliest scientific investigators of quantum tunneling" were.
The earliest investigators mentioned are "Though the extreme rapidity of quantum tunneling was noted as early as 1932, (these were the earliest investigators)... not until 1955 was it hypothesized—by Wigner and Eisenbud (they came afterwards)—that tunneling particles sometimes travel faster than light.

So the passage says that the earliest investigators did note the extreme rapidity of quantum tunneling but only much later was it hypothesised (theorised) that the particles could travel faster than light. That means that the earliest investigators did not suppose that tunneling particles could travel faster than light. That thought occurred to other investigators later.
Hence (C) is correct.

No other option makes sense.

rickyric395 - There is no reason to believe that it did come to their mind but they did not say anything because of some limitations. They did not say any such thing is possible (even if they could not prove it, they just had to hypothesize) and that implies that they did not think that it was possible - whatever the limitations.
If anyone before Newton had pointed out that there is a certain force that Earth exerts on all things, then he/she would have hypothesized gravity first, not Newton. No one can be credited with a thought until and unless they speak out. It is as good as they never had that thought. We can infer that they did not think of it.
Also, is there any other option that comes even close?


Thanks for response KarishmaB , I was under the impression that since earliest researchers were aware of rapidity, they might be hoping something more i.e certain result such as Chiao's experiment result in this case. But I understand the error in my reasoning. Thanks for pointing it out.
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
Expert Reply
ManishKM1 wrote:

GMATNinja

I have a similar question, when they noted QT in 1932, how can C be a correct option? "They did not suppose that tunneling particles could travel faster than light." They noted it but were unable to hypothesis. Can you pls help.

GMATNinja I also have the same question . How is C the answer. By following the POE?

Sorry to be late to the party, but in case it's helpful: we've answered this question in this post. Check it out and let us know if you have any other questions!
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Re: Most attempts by physicists to send particles faster than the speed of [#permalink]
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