Find all School-related info fast with the new School-Specific MBA Forum

It is currently 02 Oct 2014, 02:27

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Comets do not give off their own light but reflect light

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 27 Jun 2004
Posts: 33
Followers: 0

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

Comets do not give off their own light but reflect light [#permalink] New post 01 Jul 2004, 09:26
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Comets do not give off their own light but reflect light from other sources , such as the Sun.Scientists estimate the mass of comets by their brightness: the greater a comet's mass, the more light that comet will reflect. A satellite probe, however, has revealed that the material of which Halley's comet is composed reflects 60 times less light per unit mass than had been previously thought.


The statements above, is true, give the most support to which one of the following?

(A) Some comets are composed of material that reflects 60 times more light per unit of mass than the material of which Halley's comet is composed.

(B)Previous estimates of the mass of Halley's comet which were based on its brightness were too low.

(C) The total amount of light reflected from halley's comet is less than scientists had previously thought.

(D) The reflective properties of the material of which comets are composed vary considerably from comet to comet.

(E) Scientists need more information before they can make a good estimate of the mass of Halley's comet.

-------------------------------------------------------------------------------------
Pls. support your choice with an explanation.
Senior Manager
Senior Manager
avatar
Joined: 05 Feb 2004
Posts: 291
Location: USA
Followers: 1

Kudos [?]: 2 [0], given: 0

 [#permalink] New post 01 Jul 2004, 09:32
Intern
Intern
avatar
Joined: 27 Jun 2004
Posts: 33
Followers: 0

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

 [#permalink] New post 01 Jul 2004, 19:02
Sorry guys, I'll check the other posts before to make sure I don't duplicate.

Thanks cbrf3 for posting the link.
Manager
Manager
User avatar
Joined: 10 Jun 2004
Posts: 84
Followers: 1

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

Re: CR - Comets [#permalink] New post 01 Jul 2004, 20:12
shankarn wrote:
Comets do not give off their own light but reflect light from other sources , such as the Sun.Scientists estimate the mass of comets by their brightness: the greater a comet's mass, the more light that comet will reflect. A satellite probe, however, has revealed that the material of which Halley's comet is composed reflects 60 times less light per unit mass than had been previously thought.


(A) Some comets are composed of material that reflects 60 times more light per unit of mass than the material of which Halley's comet is composed.
Not necessary right, there is no comparison that could be drown by the argument between Halley's comet and other comets.

(B)Previous estimates of the mass of Halley's comet which were based on its brightness were too low.
It is the opposite, the estimate was higher then what had been revealed.

(C) The total amount of light reflected from Halley's comet is less than scientists had previously thought.
This is my choice because it could be implied by the bold part of the argument

(D) The reflective properties of the material of which comets are composed vary considerably from comet to comet.
Could not be supported by the argument above.

(E) Scientists need more information before they can make a good estimate of the mass of Halley's comet.
Why they have to do so? Not supported.

I hope this will help.
_________________

-Genius is one percent inspiration, and ninety-nine percent perspiration.

Manager
Manager
User avatar
Joined: 10 Jun 2004
Posts: 84
Followers: 1

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

 [#permalink] New post 01 Jul 2004, 20:18
oopps :oops: I haven't read all the post, but can some one explain why it is B :shock: . I think B states the contradict the argument.
_________________

-Genius is one percent inspiration, and ninety-nine percent perspiration.

Intern
Intern
avatar
Joined: 27 Jun 2004
Posts: 33
Followers: 0

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

 [#permalink] New post 01 Jul 2004, 21:10
hi dr_sabr,

You could refer to the following link, where this Q was already posted and received clear explanations on why "B". Hope it helps.

http://www.gmatclub.com/phpbb/viewtopic.php?t=4939

FYI, the OA is also B.
Manager
Manager
User avatar
Joined: 10 Jun 2004
Posts: 84
Followers: 1

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

 [#permalink] New post 02 Jul 2004, 06:30
Thank you shankarn :-D
_________________

-Genius is one percent inspiration, and ninety-nine percent perspiration.

  [#permalink] 02 Jul 2004, 06:30
    Similar topics Author Replies Last post
Similar
Topics:
2 Comets do not give off their own light but reflect light az780 6 04 Feb 2008, 15:44
Comets do not give off their own light but reflect light vineetgupta 8 22 Jan 2007, 10:24
Comets do not give off their own light but reflect light jyotsnasarabu 13 20 Nov 2006, 11:59
Comets do not give off their own light but reflect light Praetorian 12 17 Jul 2006, 20:31
Comets do not give off their own light but reflect light cybera 7 16 Jul 2005, 13:14
Display posts from previous: Sort by

Comets do not give off their own light but reflect light

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.