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# Using computer techniques, researchers analyze layers

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Using computer techniques, researchers analyze layers [#permalink]

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01 Nov 2013, 15:04
1
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Difficulty:

15% (low)

Question Stats:

79% (01:24) correct 21% (01:58) wrong based on 239 sessions

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Using computer techniques, researchers analyze layers of paint that lie buried
beneath the surface layers of old paintings. They claim, for example, that
additional mountainous scenery once appeared in Leonardo da Vinci's Mona
Lisa, which was later painted over. Skeptics reply to these claims, however,
that X-ray examinations of the Mona Lisa do not show hidden mountains.

Which of the following, if true, would tend most to weaken the force of the
skeptics' objections?

A. There is no written or anecdotal record that Leonardo da Vinci ever painted
over major areas of his Mona Lisa.

B. Painters of da Vinci's time commonly created images of mountainous scenery
in the backgrounds of portraits like the Mona Lisa

C. No one knows for certain what parts of the Mona Lisa may have been painted
by da Vinci's assistants rather than by da Vinci himself.

D. Infrared photography of the Mona Lisa has revealed no trace of hidden mountainous scenery.

E. Analysis relying on X-rays only has the capacity to detect lead-based white
pigments in layers of paint beneath a painting's surface layers.

Source: Litesee | OE is not available.
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Re: Using computer techniques, researchers analyze layers [#permalink]

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01 Nov 2013, 15:11
1
avohden wrote:
Using computer techniques, researchers analyze layers of paint that lie buried
beneath the surface layers of old paintings. They claim, for example, that
additional mountainous scenery once appeared in Leonardo da Vinci's Mona
Lisa, which was later painted over. Skeptics reply to these claims, however,
that X-ray examinations of the Mona Lisa do not show hidden mountains.

Which of the following, if true, would tend most to weaken the force of the
skeptics' objections?

A. There is no written or anecdotal record that Leonardo da Vinci ever painted
over major areas of his Mona Lisa.

B. Painters of da Vinci's time commonly created images of mountainous scenery
in the backgrounds of portraits like the Mona Lisa

C. No one knows for certain what parts of the Mona Lisa may have been painted
by da Vinci's assistants rather than by da Vinci himself.

D. Infrared photography of the Mona Lisa has revealed no trace of hidden mountainous scenery.

E. Analysis relying on X-rays only has the capacity to detect lead-based white
pigments in layers of paint beneath a painting's surface layers.

Source: Litesee | OE is not available.

I believe that the answer is E because the X-ray may not detect other non-lead based colored pigments that could have been used to paint the mountains behind mona lisa
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Re: Using computer techniques, researchers analyze layers [#permalink]

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18 Dec 2013, 06:15
I feel B is also convincing. Even it weakens the skeptic's objections that X-ray examinations of the Mona Lisa do not show hidden mountains.

I do not trust choice E completely as we are not sure of the kind of colored pigments used to paint the mountains behind mona lisa. If lead-based white pigments had been used, then skeptic's objections would have been more strong.

Any help?
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Re: Using computer techniques, researchers analyze layers [#permalink]

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18 Dec 2013, 06:27
1
cssk wrote:
I feel B is also convincing. Even it weakens the skeptic's objections that X-ray examinations of the Mona Lisa do not show hidden mountains.

I do not trust choice E completely as we are not sure of the kind of colored pigments used to paint the mountains behind mona lisa. If lead-based white pigments had been used, then skeptic's objections would have been more strong.

Any help?

How B is the possible explanation ?? is clearly impossible.

The objection talks about X-ray that sheds no light on something: in this case the same Xray says that under the surface of the painting there is nothing.........

E weakens this conclusion saying that: Analysis relying on X-rays only has the capacity to detect lead-based white pigments in layers of paint beneath a painting's surface layers.

From this we certainly know that X-rays in this case do something more than that skeptics sustaine or assert

B says that other painters other than Vinci depicted scenarios using the same landscape of Monna Lisa's (or something, is not so important). Is completely far aways bur really miles away from the correct answer.

Hope this helps
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Re: Using computer techniques, researchers analyze layers [#permalink]

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24 Nov 2016, 01:20
E fro sure
E. Analysis relying on X-rays only has the capacity to detect lead-based white
pigments in layers of paint beneath a painting's surface layers.
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Re: Using computer techniques, researchers analyze layers [#permalink]

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16 Nov 2017, 01:03
The question is not hard, but closed to a gmat-like question. E is the answer b/c E directly links with the argument.
Nevertheless, such question is from an unreliable source, test takers can skip this question while practising GMAT.
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Re: Using computer techniques, researchers analyze layers [#permalink]

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16 Nov 2017, 01:16
avohden wrote:
Using computer techniques, researchers analyze layers of paint that lie buried
beneath the surface layers of old paintings. They claim, for example, that
additional mountainous scenery once appeared in Leonardo da Vinci's Mona
Lisa, which was later painted over. Skeptics reply to these claims, however,
that X-ray examinations of the Mona Lisa do not show hidden mountains.

Which of the following, if true, would tend most to weaken the force of the
skeptics' objections?

A. There is no written or anecdotal record that Leonardo da Vinci ever painted
over major areas of his Mona Lisa.

B. Painters of da Vinci's time commonly created images of mountainous scenery
in the backgrounds of portraits like the Mona Lisa

C. No one knows for certain what parts of the Mona Lisa may have been painted
by da Vinci's assistants rather than by da Vinci himself.

D. Infrared photography of the Mona Lisa has revealed no trace of hidden mountainous scenery.

E. Analysis relying on X-rays only has the capacity to detect lead-based white
pigments in layers of paint beneath a painting's surface layers.

Source: Litesee | OE is not available.

Argument: X-ray analysis didn't find anything --> no hidden mountain.
Logic: X-ray analysis can measure everything.
Diagnosis: To break this argument we want to know if there is something that can go undetected by X-rays.
Solution: Option E -Analysis relying on X-rays only has the capacity to detect lead-based white pigments in layers of paint beneath a painting's surface layers - provides us with what we need i.e., the limitations of an X-ray analysis.
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Re: Using computer techniques, researchers analyze layers   [#permalink] 16 Nov 2017, 01:16
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