Question

a steel rod 70 cm long has a mass of 7 kg .If wire is under a tension of 100N ,what is the speed of transverse wave??

Answer 1

L=70cm =0.7m

M= 7 g = 7*10^-3 kg

Linear mass density= mass/length

            =7*10^-3/0.7 = 10^-2kg/m

V=√T/linear mass density

V=√100/10^-2 =√10000 = 100m/s