Sentence Correction

551. Once positioned in space, the Hubble Space Telescope will capture light from sources twenty times fainter compared to those that can be detected by ground-based instruments.
(A) compared to those that can be detected
(B) compared to those they can detect
(C) than that can be detected
(D) than those that can be detected
(E) than those detecting


OA is D /. I want to know why OA is better than C.

Sources is plural while dat is singular so C is wrong and D is rite hence

D is the best answer.

Once positioned in space, the Hubble Space Telescope will capture light from sources twenty times fainter than those[sources] that can be detected by ground-based instruments

Vs

Once positioned in space, the Hubble Space Telescope will capture light from sources twenty times fainter than that[seems to refer to light] which can be detected or simply detected by ground-based instruments

Is it the light from the sources or sources detected here...please clarify....

Sources that can be detected.

Why not "compared to" though?

reachac wrote:Sources is plural while dat is singular so C is wrong and D is rite hence

could u please tell me why compared is wrong here.
i am a bit confused between A and D..
please explain..

ketkoag wrote:

reachac wrote:Sources is plural while dat is singular so C is wrong and D is rite hence

could u please tell me why compared is wrong here.
i am a bit confused between A and D..
please explain..

'fainter' requires than

Rashmi1804 wrote:Sources that can be detected.

It's my contention that light should be the referent of those, since light rather than resources can be faint and be detected.

lenacat wrote:Why not "compared to" though?

IMO Compared to is used to show similarity between two unlike things...

e.g. "Human Brain is compared to Super Computer"

Compared with is used to show similarity or comparison between like things...since the things here discussed are similar so we need "compared with" and not "compared to"

If the options would have been "compared with"...then they would have been in the equal race to be the winner.

Caroline Lee wrote:

Rashmi1804 wrote:Sources that can be detected.

It's my contention that light should be the referent of those, since light rather than resources can be faint and be detected.

I second that....light can be detected and not sources.

Is those refering to light ???
sources cannot be fainter....only light can...
is light plural ???
Still cant ifgure out why those is used in the OA

ankit1383 wrote:Is those refering to light ???
sources cannot be fainter....only light can...
is light plural ???
Still cant ifgure out why those is used in the OA

"Those" is referring to sources buddy..

answer this: What can be detected by ground based instruments?
Sources . isnt it??

Well, any instrument ground based or space based captures light emitted by these sources to detect them..

Let's break the sentence to make it clear to you..

1. The Hubble Space Telescope will capture light from x
2. x is twenty times fainter than y
3. y can be detected by ground-based instruments.

As you can see we are comparing x and y.. so both have to be same.. and they are sources..

hope this helps..

dumb.doofus wrote:

ankit1383 wrote:Is those refering to light ???
sources cannot be fainter....only light can...
is light plural ???
Still cant ifgure out why those is used in the OA

"Those" is referring to sources buddy..

answer this: What can be detected by ground based instruments?
Sources . isnt it??

Well, any instrument ground based or space based captures light emitted by these sources to detect them..

Let's break the sentence to make it clear to you..

1. The Hubble Space Telescope will capture light from x
2. x is twenty times fainter than y
3. y can be detected by ground-based instruments.

As you can see we are comparing x and y.. so both have to be same.. and they are sources..

hope this helps..

How could the sources be fainter??? It is the "Light from Sources" is fainter. I think its C. The Hubble Space Telescope will capture [light from x] twenty times fainter than [light from Y] can be detected by ground-based instruments. Please clarify..