NEET Physics Waves Questions Solved

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A string is producing transverse vibration whose equation is y=0.021sin(x+30t), Where x and y are in meters and t is in seconds. If the linear density of the string is 1.3×10–4 kg/m, then the tension in the string in N will be 

(1) 10

(2) 0.5

(3) 1

(4) 0.117

(4) y=0.021sin(x+30t)v=ωk=301=30m/s.

Using, v=Tm30=T1.3×104T=0.117N

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