mayankdevnani
  • mayankdevnani
An echo repeats two syllables.If the velocity of sound is 330 m/s , then the distance of the reflecting surface is- a) 66.0 m b) 33.0 m c) 99.0 m d) 16.5 m
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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mayankdevnani
  • mayankdevnani
@amistre64 @TuringTest @hartnn @ganeshie8 @ghazi @theyatin
ghazi
  • ghazi
i am not sure about this , but possibly its 66 m
mayankdevnani
  • mayankdevnani
yaa its right!!!

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More answers

mayankdevnani
  • mayankdevnani
how do you do this? @ghazi
anonymous
  • anonymous
@mayankdevnani
mayankdevnani
  • mayankdevnani
no answer is wrong it gets 16.5m @theyatin
mayankdevnani
  • mayankdevnani
@ganeshie8 @geerky42 @Aperogalics
anonymous
  • anonymous
oops then i must sleep. . .
mayankdevnani
  • mayankdevnani
oh!!!! koi baat nahi
ghazi
  • ghazi
this will help you http://in.answers.yahoo.com/question/index?qid=20120713012737AAWgHSc
anonymous
  • anonymous
can you explain the concept of syllable??
mayankdevnani
  • mayankdevnani
i don't know what is syllable??
mayankdevnani
  • mayankdevnani
@hartnn @ash2326 @jazy @agreene
mayankdevnani
  • mayankdevnani
@TuringTest
anonymous
  • anonymous
well its very tough i see it as if minimum frequency gets us time t=0.05s minimum and as we have 2 syllables 0.05*2=0.1 ( as i have studied in link given by gazi) so the distance must be velocity* time=33meter but to strike wall and come back it becomes 66 as total. . . but here question is asking for the distance of surface so i am not quite sure. . .
mayankdevnani
  • mayankdevnani
@amistre64 @AccessDenied @ash2326 @dumbcow @hartnn @UnkleRhaukus @Callisto
mayankdevnani
  • mayankdevnani
@Shane_B @surdawi @AccessDenied @ajprincess @Yahoo!
mayankdevnani
  • mayankdevnani
@henpen
amistre64
  • amistre64
im assuming the question is saying that you hear your echo 2 times
anonymous
  • anonymous
You need the time between the 2 sounds
amistre64
  • amistre64
|dw:1352738321407:dw|
anonymous
  • anonymous
yey!!! that justifies my answer 16.5m which when multiplied by 4 gets an answer of 66m again explaining it. . . we can hear minimum 20hz that leads to T=0.05sec and thus the distance leads to velocity * time = 330 * 0.05=16.5 thus when multilied by 4 gets 66m. . .
mayankdevnani
  • mayankdevnani
why we multiplied it by 4 @theyatin @amistre64 @henpen
amistre64
  • amistre64
the distance traveled between the "wall" and the source is quadrupled in order to hear the echo twice, as i pictured it up. assuming that im reading the question correctly to begin with
mayankdevnani
  • mayankdevnani
oh!!! i see
amistre64
  • amistre64
imagine you and a friend throwing a ball back and forth; how far does the ball travel relative to your positions if you catch it 2 times and throw it 2 times?
mayankdevnani
  • mayankdevnani
i think 4 times. right
amistre64
  • amistre64
correct
mayankdevnani
  • mayankdevnani
thnx... @amistre64
amistre64
  • amistre64
hope its the right concept ;) good luck
mayankdevnani
  • mayankdevnani
what is syllables???
amistre64
  • amistre64
im thinking that it pertains to the rebound that you hear. and not really referencing words perse
mayankdevnani
  • mayankdevnani
oh!!!
amistre64
  • amistre64
if you stand in an echoy place and give a brisk woot!! you can hear how many times it echos back at you
amistre64
  • amistre64
one of them old dead scientist guys used a long hallway that he knew the length of in order to estimate the speed of sound that way

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