Speed of a transverse wave on a straight wire (mass 6g, length 60 cm and area of cross-section 1.0mm^2) is 90ms^-1. If the Youngs modules of wire is 16 10^11Nm^-2, the extension of wire over its natu…

Question

Speed of a transverse wave on a straight wire (mass 6g, length 60 cm and area of cross-section 1.0mm^2) is 90ms^-1. If the Youngs modules of wire is 16 10^11Nm^-2, the extension of wire over its natural length is:

Accepted Answer

Correct answer: A. (a) JEE Main 2020 v= T T= v^2 v^2A=Y ll l= v^2l AY after substituting value of ,v ,l ,A and Y we get l=0.03mm

$Speed of a transverse wave on a straight wire (mass 6 g, length 60 cm and area of cross-section 1.0 m m^{2}) is 90 m s^{- 1} . If the Youngs modules of wire is 16 \times 10^{11} N m^{- 2}, the extension of wire over its natural length is:$

Solution

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