1000SC Question no 370

[samyak]

370. In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.
(A) to which light from a distant galaxy has been shifted
(B) to which light from a distant galaxy has shifted
(C) that light from a distant galaxy has been shifted
(D) of light from a distant galaxy shifting
(E) of the shift of light from a distant galaxy

I'm unable to narrow down my options to A, which is the best one.Please assist.

[electrico]

Lets use POE:

(A) to which light from a distant galaxy has been shifted -->correct
(B) to which light from a distant galaxy has shifted -->passive voice is required because of scientific phenomenon. Has shifted means that light has shifted something.
(C) that light from a distant galaxy has been shifted --> extent that is wrong idiom
(D) of light from a distant galaxy shifting -->Not idiomatic
(E) of the shift of light from a distant galaxy --> awakward

[pradeepkaushal9518]

I also go for A.
I was confused beetween A and B but as passive voice is required so opted for A.

what is POE?

[ansumania]

hi,

why E can't be correct ?

is it violating any rule or is it giving a wrong meaning?

regards,

Ansuman

[kevincanspain]

hi,

why E can't be correct ?

is it violating any rule or is it giving a wrong meaning?

regards,

Ansuman

The latter: if I say 'the shift of capital from Europe to China' , I am referring to the movement of capital.

Likewise, E seems to suggest that light moves from a distant galaxy towards an end of the spectrum

[ansumania]

but isn't that what we mean?..I'm sorry ...if I am confusing but I thought that is what it meant "light moves from a distant galaxy towards an end of the spectrum"

pl. suggest.....

regards,

Ansumania

[electrico]

@ pradeepkaushal9518 , POE = Process of Elimination

In (E) of the shift of light from a distant galaxy

The second part of sentence contains "by the rapid motion of the"...so it needs a passive voice. E will not fulfill this. Also, Extent to which is more idiomatic.

[beat_gmat_09]

Can some one explain me the tense here (options A & B). Should it be the present perfect (i believe it shouldnt be present perfect as present perfect relates to something which is going now) or present perfect continuous (but why is present continuous tense correct in Option A here)?
I think the tense should be simple present as a term denotes, which is universal truth and accepted in general.

the term "red shift" denotes the extent to which light from a distant galaxy shifts.

Is my understanding valid ?

[paes]

hi,

why E can't be correct ?

is it violating any rule or is it giving a wrong meaning?

regards,

Ansuman

The latter: if I say 'the shift of capital from Europe to China' , I am referring to the movement of capital.

Likewise, E seems to suggest that light moves from a distant galaxy towards an end of the spectrum

Why C is wrong ?
Is 'extent that' always wrong ? I have seen some sentences with the idiom extent that.

[beat_gmat_09]

hi,

why E can't be correct ?

is it violating any rule or is it giving a wrong meaning?

regards,

Ansuman

The latter: if I say 'the shift of capital from Europe to China' , I am referring to the movement of capital.

Likewise, E seems to suggest that light moves from a distant galaxy towards an end of the spectrum

Why C is wrong ?
Is 'extent that' always wrong ? I have seen some sentences with the idiom extent that.

That may be of the form-
to such a extent ......that