Calculate the velocity of transverse waves in a copper wire of 1mm^2 in cross section under the tension produced by 1kgwt.The density of copper =8.93kg m^-3.

Asked by Vidushi412 | 19th Jan, 2019, 11:01: PM

Expert Answer:

Velocity of transverse waves = begin mathsize 12px style square root of T over mu end root end style
where T is tension in string and μ is the linear mass density
 
(density of copper = 8930 kg/m3 , wrong value is given in the question ! )
 
μ = Mass/Length = (density×crosssection area×Length)/Length = density×(crosssection area) = 8930 ×10-6 kg/m
 
Velocity of transverse waves = begin mathsize 12px style square root of fraction numerator 9.8 over denominator 8930 cross times 10 to the power of negative 6 end exponent end fraction end root space almost equal to space 33 space m divided by s end style

Answered by Thiyagarajan K | 19th Jan, 2019, 11:31: PM

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