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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 , 15 Years ago
Grade 12
anser 4 Answers
SAGAR SINGH - IIT DELHI

Dear student,

v/x=v'/1.5x

v'=1.5v

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Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi
Last Activity: 15 Years ago
sapna .

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

Last Activity: 13 Years ago
Maurya Sharma
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
 
 
 
 
 
Last Activity: 7 Years ago
ankit singh
 
 
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
Last Activity: 5 Years ago
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