GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 09 Dec 2019, 18:49

Close

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

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 GMAT 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

People perceive color by means of certain photopigments in the retina

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
VP
VP
avatar
V
Joined: 30 Jan 2016
Posts: 1174
Reviews Badge CAT Tests
People perceive color by means of certain photopigments in the retina  [#permalink]

Show Tags

New post 22 Sep 2019, 11:13
2
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (02:00) correct 35% (02:08) wrong based on 156 sessions

HideShow timer Statistics

People perceive color by means of certain photopigments in the retina that are sensitive to certain wavelengths of light. People who are colorblind are unable to distinguish between red and green, for example, due to an absence of certain photopigments. What is difficult to explain, however, is that in a study of people who easily distinguish red from green, 10 to 20 percent failed to report distinctions between many shades of red that the majority of the subjects were able to distinguish.

Each of the following, if true, helps to explain the result of the study cited above EXCEPT:

(A) People with abnormally low concentrations of the photopigments for perceiving red can perceive fewer shades of red than people with normal concentrations.
(B) Questions that ask subjects to distinguish between different shades of the same color are difficult to phrase with complete clarity.
(C) Some people are uninterested in fine gradations of color and fail to notice or report differences they do not care about.
(D) Some people are unable to distinguish red from green due to an absence in the retina of the photopigment sensitive to green.
(E) Some people fail to report distinctions between certain shades of red because they lack the names for those shades.

_________________
Non progredi est regredi
Intern
Intern
avatar
B
Joined: 25 Mar 2019
Posts: 1
Re: People perceive color by means of certain photopigments in the retina  [#permalink]

Show Tags

New post 01 Oct 2019, 10:31
Why option A is incorrect? Abnormality in study is difference in sensing ability of different shades of red. Not difference in red and green.

Posted from my mobile device
CR & LSAT Forum Moderator
User avatar
V
Status: He came. He saw. He conquered. -- Studying for the LSAT -- Corruptus in Extremis
Joined: 31 Jul 2017
Posts: 869
Location: United States (IL)
Concentration: Finance, Economics
Reviews Badge
People perceive color by means of certain photopigments in the retina  [#permalink]

Show Tags

New post 02 Oct 2019, 08:50
SUBHASH309 wrote:
Why option A is incorrect? Abnormality in study is difference in sensing ability of different shades of red. Not difference in red and green.

Posted from my mobile device


(A) is incorrect because it resolves the paradox. If people can't distinguish between versions of red, but they can do it for green vs. red, then (A) helps resolve this by explaining that you can only see certain types of red. What is confusing you?
_________________
D-Day: November 18th, 2017

My CR Guide: Here
My RC Guide: Here
Need an expert to grade your AWA? Go: Here
Want to know your Business School chances? Go: Here
Want to be a moderator? We may want you to be one! See how: Here
Manager
Manager
User avatar
G
Joined: 31 Jan 2019
Posts: 217
Location: Switzerland
Concentration: General Management
GPA: 3.9
Re: People perceive color by means of certain photopigments in the retina  [#permalink]

Show Tags

New post 17 Oct 2019, 12:56
Akela wrote:
People perceive color by means of certain photopigments in the retina that are sensitive to certain wavelengths of light. People who are colorblind are unable to distinguish between red and green, for example, due to an absence of certain photopigments. What is difficult to explain, however, is that in a study of people who easily distinguish red from green, 10 to 20 percent failed to report distinctions between many shades of red that the majority of the subjects were able to distinguish.

Each of the following, if true, helps to explain the result of the study cited above EXCEPT:

(A) People with abnormally low concentrations of the photopigments for perceiving red can perceive fewer shades of red than people with normal concentrations.
(B) Questions that ask subjects to distinguish between different shades of the same color are difficult to phrase with complete clarity.
(C) Some people are uninterested in fine gradations of color and fail to notice or report differences they do not care about.
(D) Some people are unable to distinguish red from green due to an absence in the retina of the photopigment sensitive to green.
(E) Some people fail to report distinctions between certain shades of red because they lack the names for those shades.



Paradox question

The conclusion is about people who cannot distinguish between shades of green or of red. The paradox is related to this small percentage.

Choice D nonetheless does not address the problem related to shadows at all, hence it does not address the paradox and it is the correct choice.
Director
Director
User avatar
P
Joined: 18 Dec 2017
Posts: 836
Location: United States (KS)
Premium Member CAT Tests
Re: People perceive color by means of certain photopigments in the retina  [#permalink]

Show Tags

New post 24 Nov 2019, 15:44
Akela wrote:
People perceive color by means of certain photopigments in the retina that are sensitive to certain wavelengths of light. People who are colorblind are unable to distinguish between red and green, for example, due to an absence of certain photopigments. What is difficult to explain, however, is that in a study of people who easily distinguish red from green, 10 to 20 percent failed to report distinctions between many shades of red that the majority of the subjects were able to distinguish.

Each of the following, if true, helps to explain the result of the study cited above EXCEPT:

(A) People with abnormally low concentrations of the photopigments for perceiving red can perceive fewer shades of red than people with normal concentrations.
(B) Questions that ask subjects to distinguish between different shades of the same color are difficult to phrase with complete clarity.
(C) Some people are uninterested in fine gradations of color and fail to notice or report differences they do not care about.
(D) Some people are unable to distinguish red from green due to an absence in the retina of the photopigment sensitive to green.
(E) Some people fail to report distinctions between certain shades of red because they lack the names for those shades.



Option D because it talks about distinguish red from green but we are looking for "why people are not able to distinguish between shades of red".
_________________
D-Day : 21st December 2019

The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long

Learn from the Legend himself: All GMAT Ninja LIVE YouTube videos by topic
You are missing on great learning if you don't know what this is: Project SC Butler
GMAT Club Bot
Re: People perceive color by means of certain photopigments in the retina   [#permalink] 24 Nov 2019, 15:44
Display posts from previous: Sort by

People perceive color by means of certain photopigments in the retina

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





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