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The extension in a string (obeying Hooke's law) is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5x, what would the speed of sound be?

Naina Razdan , 14 Years ago
Grade 12
anser 4 Answers
SAGAR SINGH - IIT DELHI

Last Activity: 14 Years ago

Dear student,

v/x=v'/1.5x

v'=1.5v

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Sagar Singh

B.Tech, IIT Delhi

sapna .

Last Activity: 12 Years ago

acc to me the correct answer is 1.22v as v is proportional to √x.

Maurya Sharma

Last Activity: 5 Years ago

Y=Fl/A∆l
 
F=(YA/l) ∆l 
F js Directly proportional to change in length
 
According to wave motion, v is Directly proportional to √F
 
Therefore, v is directly proportional to √∆l
 
V=kx 
V'=k√1.5x
V'=1.22v
 
 
 
 
 

ankit singh

Last Activity: 4 Years ago

 
 
Y=Fl/A∆l
 
F=(YA/l) ∆l 
F js Directly proportional to change in length
 
According to wave motion, v is Directly proportional to √F
 
Therefore, v is directly proportional to √∆l
 
V=kx 
V'=k√1.5x
V'=1.22v

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