BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Doppler effect

Expert replies
by karmayogi » Thu Dec 25, 2008 10:48 am
If two trains pass each other going opposite directions on parallel east-west tracks, which of the following observations provides another illustration of the effect described above?
A. If the eastbound train blows its horn as they pass, passengers on the westbound train will hear a sound that decreases in pitch.
B. If the eastbound train blows its horn as they pass, passengers on the westbound train will hear a sound that increases in pitch.
C. If the eastbound train blows its horn as they pass, passengers on the eastbound train will hear a sound that decreases in pitch.
D. If the eastbound train blows its horn as they pass, passengers on the eastbound train will hear a sound that increases in pitch.
E. If the eastbound train blows its horn as they pass, passengers on the eastbound train will hear a sound that is steady in pitch.
Each soul is potentially divine. The goal is to manifest this divine within.
--By Swami Vivekananda
Join the discussion
Source: — Critical Reasoning |

by ronniecoleman » Thu Dec 25, 2008 10:58 am
what is the source ??
Admission champion, Hauz khaz
011-27565856
Join the discussion

by earth@work » Thu Dec 25, 2008 2:20 pm
IMO A, what is the answer?
A:sound pitch to westbound passengers will decrease if the train blows the horn when passing( assuming the passenger sitting at the point where horn is blown)
B: pitch will increase if the train was already blowing horn before crossing
C, D & E show no relation between eastbound and westbound
Join the discussion

by karmayogi » Thu Dec 25, 2008 7:03 pm
ronniecoleman wrote:what is the source ??
Manhattan
Each soul is potentially divine. The goal is to manifest this divine within.
--By Swami Vivekananda
Join the discussion

by karmayogi » Thu Dec 25, 2008 8:27 pm
earth@work wrote:IMO A, what is the answer?
( assuming the passenger sitting at the point where horn is blown)
If I assume the other way round then what's wrong with B?
Each soul is potentially divine. The goal is to manifest this divine within.
--By Swami Vivekananda
Join the discussion

by raunekk » Thu Dec 25, 2008 10:12 pm
b/w A and B...


quite confusing...
Join the discussion

by karmayogi » Fri Dec 26, 2008 12:18 am
raunekk wrote:b/w A and B...


quite confusing...
Seriously confusing.

Could someone from Manhattan please pitch in?
Each soul is potentially divine. The goal is to manifest this divine within.
--By Swami Vivekananda
Join the discussion

by raunekk » Fri Dec 26, 2008 1:20 am
hey guys...

https://www.manhattangmat.com/forums/the ... t3422.html

i found it in mgmat forum....


have a look..

mgmat instructor himself says the question needs some modifications...


thanks.
Join the discussion

by karmayogi » Fri Dec 26, 2008 4:05 am
raunekk wrote:hey guys...

https://www.manhattangmat.com/forums/the ... t3422.html

i found it in mgmat forum....


have a look..

mgmat instructor himself says the question needs some modifications...


thanks.
Cooool! So the problem is with the wording; Chapter closed.
Each soul is potentially divine. The goal is to manifest this divine within.
--By Swami Vivekananda
Join the discussion

by nicolette » Fri May 13, 2016 2:34 am
I think option A is correct
Join the discussion

by ashley.com » Fri May 13, 2016 2:50 am
I hope answer is A
Join the discussion