Events & Promotions
|
|
GMAT 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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Jul 0808:00 PM PDT
-09:00 PM PDT
Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
Jul 0911:00 AM PDT
-12:30 PM PDT
Welcome to the M7 MBA Spotlight Series, featuring MIT Sloan School of Management! This video is part of GMAT Club’s exclusive MBA Spotlight event, where top business schools meet prospective applicants like you.- Jun 30
08:00 AM PDT
-11:59 PM PDT
Join us June 30th for 2 weeks of GMAT questions (just 8 per day) to help with your prep and to compete with your fellow GMAT Clubbers for a chance to win a prize fund of $30,000 for you and your team-mates! - Jul 01
01:00 AM EDT
-11:00 PM EDT
More Target Test Prep students are earning 100th percentile GMAT scores. Don’t settle for less when the Target Test Prep course gives you everything you need to score high on the GMAT. Start your 5-day free trial today. - Jul 08
01:00 AM EDT
-11:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep. 
Jul 0809:30 AM EDT
-10:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.- Jul 08
10:00 AM PDT
-11:00 AM PDT
Did you know that there are test accommodations available for the GMAT exam? Not enough people do! In this informative video, Jason Northrup, GMAC’s Senior Manager for Testing Accommodations, joins GMAT Ninja founder Charles Bibilos - Jul 08
11:30 AM EDT
-01:30 PM EDT
An interactive 2-hour class by Aditya Kumar to Establish clear structures & guidelines to enhance your decision-making and improve your speed and accuracy in Algebra. - Jul 10
11:00 AM PDT
-11:00 AM PDT
In our conversation, Kishore talks about how strategically he used data analytics to identify high impact areas to focus on as well as his early morning study routine (3 AM prep!) that optimized his GMAT preparation. 
Jul 1211:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.
Jul 1311:00 AM EDT
-12:30 PM EDT
Looking for your GMAT motivation to break through the score plateau? Pragati improved her score by massive 160 points with strategic guidance and hard-work! Find out how personalized mentorship and a strong mindset can turn GMAT struggles into success.- Jul 15
08:00 PM PDT
-09:00 PM PDT
Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
70% (01:52) correct
30%
(01:55)
wrong
based on 7144
sessions
History
Date
Time
Result
Not Attempted Yet
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 too 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
(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 too 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
atalwar
Please explain how reference to it in choice D and E is wrong. IN D,E og says reference to it is not clear. can you highlight this.. is it in these sentences pointing wavelength or infrared (both) ?? how it in B is clear? Is the same error not in B ?
Hi Aditya,
Let me write the entire sentence taking Option D into consideration.
The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible.
As you can see the pronoun “it” is ambiguous. It can refer to either “wavelength” or “infrared radiation”.
Even if you say that only wavelength can be long and so “it” properly refers to wavelength, then you can say that “thus invisible” is modifying “wavelength” in that case.
The original sentence intends to say that the “infrared radiation” is invisible to the eye because of some reasons. The original sentence doesn’t intend to say that “the wavelength is invisible”.
This is the error in Option D.
Now let us look at the entire sentence taking Option E into consideration.
The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible
Again, the pronoun “it” is ambiguous. (Making radiation invisible or Making wavelength invisible?)
Also the use of “that” is incorrect.
a. Trees which give oxygen are essential for life on earth.
b. Trees that give oxygen are essential for life on earth.
Sentence (a) tells us that trees are essential for life on earth and states a property of trees i.e. Trees give oxygen.
Sentence (b) tells us that only trees that give oxygen are essential for life on earth.
This is the meaning difference between “which” and “that”
The usage of “that” in Option E brings about a similar meaning change. It is talking about “a particular wavelength of 0.1 millimeters that is too long for eye to register”, whereas the original sentence intends to say that “all wavelengths of 0.1 millimeters are too long for eye to register.”
Hope you get the difference in the meanings.
For the reasons above stated, Option E is incorrect too.
Hope this helps!
Regards,
Krishna
03 Dec 2010, 14:42
Kudos
Bookmarks
ajit257
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 too 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
Please can some explain why choice b is not correct ?
(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 too 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
Please can some explain why choice b is not correct ?
Hi! This question is an excellent test of modification, which is heavily tested on the GMAT.
As always, when first evaluating a sentence it's best to ignore the "extra bits" - focus on the subject and verb.
First, we recognize that the semicolon divides two equal sentences; in effect, we can ignore everything that comes before it. So, let's only focus on the underlined portion.
In the original (and, of course, choice (A)), we have:
Quote:
infrared radiation is invisible because its wavelength is too long to be registered by the eye.
Seems like a perfectly sound sentence - it's clear what's invisible (IR), "its" has a single clear antecedent (IR) and no style issues. Lookin' good!
Next up is (B):
Quote:
however, the wavelength ... is too long to be registered by the eye making it invisible.
This one isn't as clear: "it" is supposed to refer to IR, but actually modifies the subject of the sentence, "the wavelength". As noted by our Trojan-loving poster, a prepositional phrase can't be the subject, so even though (B) contains "of infrared radiation" that's not a legal parent noun for "it".
Here's another very useful general rule for the GMAT: ignore prepositional phrases. Such phrases appear all the time and are pretty much always just in there to distract you from the basic sentence structure.
Next we have (C):
Quote:
infrared radiation is invisible because its wavelength is too long for the eye to register it.
More pronoun problems (pronouns are another very commonly tested grammar concept)! "it" at the end of the sentence could refer to either IR or wavelength. When you see an ambiguous pronoun, move on!
(Technically pronouns refer to the closest "legal" preceding parent noun - in this sentence that would be "wavelength" - but for the most part the GMAT abhors pronoun ambiguity.)
How about (D):
Quote:
however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible.
Same issue as (B) - "of infrared radiation" can't be the antecedent for "it".
Finally (E):
Quote:
however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible.
"that" renders this sentence awkward; also, "it" at the end could refer to IR, wavelength or the eye.
