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Speed of transverse wave on a straight w...

Speed of transverse wave on a straight wire (mass m, length l , area of cross-section A) is. If the young’s modulus of wire is Y, the extension of wire over its natural length, is independent of

A

l

B

m

C

A

D

Y

Text Solution

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The correct Answer is:
A
`because Deltal=(Fl)/(AY)=(mulv^(2))/(AY)=(mv^(2))/(AY)" "(because v=sqrt((F)/(mu))) implies Deltal` is independennt of l.
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