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# CR; A quark-gluon plasma, a hypothesized phase

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Intern
Joined: 30 Jul 2013
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Location: India
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WE: General Management (Insurance)
CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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Updated on: 27 Mar 2017, 23:07
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25% (medium)

Question Stats:

74% (01:09) correct 26% (01:22) wrong based on 137 sessions

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A quark-gluon plasma, a hypothesized phase of quantum chromodynamics of interest to physicists, is supposed to exist at conditions of extremely high temperature or density that never naturally occur on Earth. The conditions engendering quark-gluon plasma were thought to have occurred in the first hundred microseconds or so of the universe. It follows that physicists will never be able to observe quark-gluon plasma.
Which of the following, if true, most seriously weakens the argument above?

a) So-called quark stars are hypothesized to exist of extremely dense matter.

b) The temperature of quark-gluon plasma is believed to be 4 billion degrees Celsius.

c) The existence of the quark -gluon plasma was first hypothesized on the basis of observations by physicists.

d) High temperatures and densities not usually found on earth can be created in particle accelerators.

e) A quark-gluon plasm is thought to consist of asymptotically free quarks and gluons, which are several of the basic building blocks of matter.

Originally posted by annusngh on 27 Mar 2017, 05:51.
Last edited by annusngh on 27 Mar 2017, 23:07, edited 1 time in total.
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Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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27 Mar 2017, 06:09
1
I think there are some typos in your question.
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We Shall Overcome... One day...

Intern
Joined: 30 Jul 2013
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Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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27 Mar 2017, 23:11
nahid78 wrote:
I think there are some typos in your question.

Hi Nahid78,

Yes, have my apologies for typo errors but now all are rectified. Thanks for the suggestion.

Thanks,
Anil
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Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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30 Mar 2017, 03:45
1
annusngh wrote:
A quark-gluon plasma, a hypothesized phase of quantum chromodynamics of interest to physicists, is supposed to exist at conditions of extremely high temperature or density that never naturally occur on Earth. The conditions engendering quark-gluon plasma were thought to have occurred in the first hundred microseconds or so of the universe. It follows that physicists will never be able to observe quark-gluon plasma.
Which of the following, if true, most seriously weakens the argument above?

a) So-called quark stars are hypothesized to exist of extremely dense matter.

b) The temperature of quark-gluon plasma is believed to be 4 billion degrees Celsius.

c) The existence of the quark -gluon plasma was first hypothesized on the basis of observations by physicists.

d) High temperatures and densities not usually found on earth can be created in particle accelerators.

e) A quark-gluon plasm is thought to consist of asymptotically free quarks and gluons, which are several of the basic building blocks of matter.

quark-gluon plasma exist at conditions of extremely high temperature or density that never naturally occur on Earth and so physicists will never be able to observe quark-gluon plasma

to observe a quark-gluon plasma we need to create high temperatures and dentsities

option D states that High temperatures and densities not usually found on earth can be created in particle accelerators.

Hence option D is correct
Hit Kudos if you liked it
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Joined: 13 Mar 2014
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Schools: HBS '17, Stanford '17
Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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30 Mar 2017, 20:15
Main conclusion is physicist will never able to observe it.

Where C says it was hypothesised based on the observation.

Let me correct if I am wrong.

Posted from my mobile device
Intern
Joined: 13 Mar 2014
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Schools: HBS '17, Stanford '17
Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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30 Mar 2017, 20:16
Main conclusion is physicist will never able to observe it.

Where C says it was hypothesised based on the observation.

Let me correct if I am wrong.

Posted from my mobile device

Posted from my mobile device
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Re: CR; A quark-gluon plasma, a hypothesized phase  [#permalink]

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25 Sep 2017, 14:23
this question how outside knowledge is never used in gmat.
Certainly, the best way for scientists is to observe the physics phenomenon by observing another galaxy. Nevertheless, in the context of this question, D weakens the premise, and hence weakens the argument.
Re: CR; A quark-gluon plasma, a hypothesized phase &nbs [#permalink] 25 Sep 2017, 14:23
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# CR; A quark-gluon plasma, a hypothesized phase

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