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A steel wire has a lengh of 90 cm which is under a constant tension of 100 N. The speed of the transverse waves that can be produced in the wire will be (take the mass of the steel wire be 6 xx 10^(-3) kg) , |
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Answer» 50 m/s. m = `(M)/(L) = (6xx10^(-3))/(0.9) = (2)/(3) xx 10^(-2) `KG/`m^(-1)` Now v = `sqrt(T//m)= sqrt((100)/((2)/(3) xx 10^(-2)))` = ` 100 sqrt((3)/(2)) = 50 sqrt(6)` s . correct choice is d. |
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