Wave motionMedium
Question
The linear density of a vibrating string is 1.3 × 10-4 kg/m. A transverse wave is propagating on the string and is described by the equation y = 0.021 sin (x + 30t) where x and y are measured in meter and t in second the tension in the string is : -
Options
A.0.12 N
B.0.48 N
C.1.20 N
D.4.80 N
Solution
v = 
= 30 m/s = 
⇒ T = μ × 900 = 1.3 × 10-4 × 900 = 0.12 N
= 30 m/s = ⇒ T = μ × 900 = 1.3 × 10-4 × 900 = 0.12 N
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