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# The physical structure of the human eye enables it to sense

Author Message
Manager
Status: GMAT Preperation
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Kudos [?]: 156 [0], given: 15

The physical structure of the human eye enables it to sense [#permalink]

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21 Oct 2010, 06:04
00:00

Difficulty:

45% (medium)

Question Stats:

58% (01:58) correct 42% (01:05) wrong based on 24 sessions

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The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters;
infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered
by the eye.

(A) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be
registered by the eye
(B) however, the wavelength of infrared radiation--0.1 millimeters--is top long to be registered by the eye
making it invisible
(C) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long for the eye
to register it
(D) however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to
register and thus invisible
(E) however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register,
thus making it invisible
[Reveal] Spoiler: OA
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21 Oct 2010, 06:57
First, let us get rid of B and D because the referent for the- it - is -wavelength- and not - radiation -(D also uses --and thus invisible – an incomplete phrase, which is a serious foul of parallellism) and E for using an ambiguous – it- in - thus making it invisible

Between A and C: C has 2 problems. 1 -For the eye to register - is not as appropriate as - to be registered by the eye-. 2. The - it – in -to register it – is redundant because - it - in effect repeats the wavelength- when rephrased it looks as - its wavelength--0.1 millimeters--is too long for the eye to register the wavelength.
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Manager
Status: GMAT Preperation
Joined: 04 Feb 2010
Posts: 101
Concentration: Social Entrepreneurship, Social Entrepreneurship
GPA: 3
WE: Consulting (Insurance)
Followers: 2

Kudos [?]: 156 [0], given: 15

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21 Oct 2010, 07:02
i couldnt get a reason to eliminate E..
Retired Moderator
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 3830
Location: India
WE: Education (Education)
Followers: 816

Kudos [?]: 6290 [0], given: 324

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21 Oct 2010, 07:51
I have said in my first para that E uses an ambiguous – it- in - thus making it - invisible – What is the referent of –it-? Making invisible what? Is it eye, or wavelength, or the radiation? An apt pronoun will not dither with so many possibilities. So eliminate E
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“Better than a thousand days of diligent study is one day with a great teacher” – a Japanese proverb.
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Re: idiomatic   [#permalink] 21 Oct 2010, 07:51
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