Last visit was: 05 Nov 2024, 08:35 It is currently 05 Nov 2024, 08:35

Close

GRE Prep 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
SORT BY:
Date
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [5]
Given Kudos: 25919
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [1]
Given Kudos: 25919
Send PM
Intern
Intern
Joined: 15 Jul 2020
Posts: 3
Own Kudos [?]: 10 [0]
Given Kudos: 49
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [1]
Given Kudos: 25919
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
1
Expert Reply
In 1998 scientists using the neutrino detector in Kamioka, Japan, were able to observe several thousand neutrinos—elusive, tiny subatomic particles moving at nearly the speed of light and passing through almost everything in their path. The Kamioka find-ings have potentially far-reaching ramifications. They strongly suggest that the neutrino has mass, albeit an infinitesimal amount. Even a tiny mass means that neutrinos would outweigh all the universe’s visible matter, because of their vast numbers. The findings also suggest that a given neutrino does not have one stable mass or one stable identity; instead it oscillates from one identity or “flavor” (physicists’ term describing how neutrinos interact with other particles) to another. This oscillation may explain why, although the Sun is a large source of neutrinos, detectors capture far fewer solar neutrinos than the best theory of solar physics predicts: the neutrinos may be changing to flavors undetectable by detectors. Finally, while the standard particle-physics model—which describes all matter in terms of twelve fundamental particles and four fundamental forces—does not allow for neutrinos with mass, there are theories that do. Further experiments to confirm that neutrinos have mass could help physicists determine which, if any, of these theories is correct


The primary purpose of the passage is to

A) evaluate the merits of a particular theory in light of new evidence



B) discuss scientists’ inability to account for certain unexpected discoveries
C) point out certain shortcomings in a long-standing theory
D) compare several alternative explanations for a particular phenomenon


E) consider some implications of certain scientific findings

That's why A is wrong and E is right. Simply the passage main idea DOES NOT evaluate the merit but considers some implications and suggests that further investigations are necessary

Hope this helps
Senior Manager
Senior Manager
Joined: 03 Dec 2020
Posts: 440
Own Kudos [?]: 60 [0]
Given Kudos: 68
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
out of curiosity, option c can be interfered from passage ,right?
Manager
Manager
Joined: 15 May 2021
Posts: 59
Own Kudos [?]: 35 [1]
Given Kudos: 92
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
1
void wrote:
out of curiosity, option c can be interfered from passage ,right?


The ramifications are potential not for sure.

Btw I wronged this during practicing, later found it correct.
Retired Moderator
Joined: 02 Dec 2020
Posts: 1833
Own Kudos [?]: 2146 [0]
Given Kudos: 140
GRE 1: Q168 V157

GRE 2: Q167 V161
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
No. Neutrinos are not visible matter.

The passage says that the whole mass of neutrinos will outweigh the total mass of all the visible matters.

void wrote:
out of curiosity, option c can be interfered from passage ,right?
avatar
Intern
Intern
Joined: 24 Mar 2020
Posts: 2
Own Kudos [?]: 0 [0]
Given Kudos: 10
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
Why can't B be the correct answer choice in question 2? In the last 3-4 sentences it is mentioned that the standard particle model doesn't allow for neutrinos to have mass. If it proven, then the standard theory can be proven as being false.

Posted from my mobile device
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [1]
Given Kudos: 25919
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
1
Expert Reply
In 1998 scientists using the neutrino detector in Kamioka, Japan, were able to observe several thousand neutrinos—elusive, tiny subatomic particles moving at nearly the speed of light and passing through almost everything in their path.

The scientists observed several neutrinos, which are particles that are as almost fast as light an can go through everything

The Kamioka findings have potentially far-reaching ramifications.

The discovery is quite remarkable and has several implications for future research.

They strongly suggest that the neutrino has mass, albeit an infinitesimal amount.

The first important implication is that they have a mass to assess

Even a tiny mass means that neutrinos would outweigh all the universe’s visible matter, because of their vast numbers.

Having a mass and considering their almost infinite numbers, the result is that they outweigh the other particles in the universe

The findings also suggest that a given neutrino does not have one stable mass or one stable identity; instead it oscillates from one identity or “flavor” (physicists’ term describing how neutrinos interact with other particles) to another.

Their mass varies. It is not fixed even though is infinite tiny.


This oscillation may explain why, although the Sun is a large source of neutrinos, detectors capture far fewer solar neutrinos than the best theory of solar physics predicts: the neutrinos may be changing to flavors undetectable by detectors.

An important consideration is that the variation in the neutrino's mass bears that they could be NOT detectable

Finally, while the standard particle-physics model—which describes all matter in terms of twelve fundamental particles and four fundamental forces—does not allow for neutrinos with mass, there are theories that do.

Neutrinos escapes the classic or standard physic theory. They do not contemplate that neutrinos have a mass. But indeed they have

Further experiments to confirm that neutrinos have mass could help physicists determine which, if any, of these theories is correct.

we still do not know the entity of neutrino's mass and how to deal with it. we need further investigations.
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [1]
Given Kudos: 25919
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
1
Expert Reply
Question 1


In 1998 scientists using the neutrino detector in Kamioka, Japan, were able to observe several thousand neutrinos—elusive, tiny subatomic particles moving at nearly the speed of light and passing through almost everything in their path. The Kamioka find-ings have potentially far-reaching ramifications. They strongly suggest that the neutrino has mass, albeit an infinitesimal amount. Even a tiny mass means that neutrinos would outweigh all the universe’s visible matter, because of their vast numbers. The findings also suggest that a given neutrino does not have one stable mass or one stable identity; instead it oscillates from one identity or “flavor” (physicists’ term describing how neutrinos interact with other particles) to another. This oscillation may explain why, although the Sun is a large source of neutrinos, detectors capture far fewer solar neutrinos than the best theory of solar physics predicts: the neutrinos may be changing to flavors undetectable by detectors. Finally, while the standard particle-physics model—which describes all matter in terms of twelve fundamental particles and four fundamental forces—does not allow for neutrinos with mass, there are theories that do. Further experiments to confirm that neutrinos have mass could help physicists determine which, if any, of these theories is correct


The primary purpose of the passage is to

A) evaluate the merits of a particular theory in light of new evidence



B) discuss scientists’ inability to account for certain unexpected discoveries
C) point out certain shortcomings in a long-standing theory
D) compare several alternative explanations for a particular phenomenon


E) consider some implications of certain scientific findings

That's why A is wrong and E is right. Simply the passage main idea DOES NOT evaluate the merit but considers some implications and suggests that further investigations are necessary

Hope this helps
Verbal Expert
Joined: 18 Apr 2015
Posts: 29891
Own Kudos [?]: 36123 [1]
Given Kudos: 25919
Send PM
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
1
Expert Reply
Question 2


According to the passage, one significant implication of the discovery that neutrinos have mass is that such a discovery would

A) cast doubt on the solar origins of many of the neutrinos that reach Earth

no is wrong. we mentioned the sun just because it emits neutrinos that are not always detectable

B) help to establish the validity of the standard particle-physics model

No we need further investigations.

C) indicate that most of the visible matter of the universe is composed of neutrinos

No. the passage says that neutrinos outweigh the rest of visible matter

D) entail that the total weight of all the visible matter in the universe is less than that of all the neutrinos in the universe

yes correct

E) mean that the speed with which neutrinos normally move can be slowed by certain types of matter

never the passage says that. It says just that neutrinos move almost as fast as light
Prep Club for GRE Bot
Re: OG_VPR # 12-13 In 1998 scientists using the neutrino detecto [#permalink]
Moderators:
GRE Forum Moderator
37 posts
GRE Instructor
228 posts
GRE Instructor
1063 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne