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The linear density of a vibrating string...

The linear density of a vibrating string is `1.3xx10^(-4) kg m^(-1)` . A transverse wave is propagating on the string and its described by the equation `y = 0.021 sin (x+30t)` , where x and y are measured in m and t in s The tension in the string is

A

0.12 N

B

0.48 N

C

1.20 N

D

4.80 N

Text Solution

Verified by Experts

The correct Answer is:
A
`v=("coeff of" omega)/("coedd of"k)=(30)/(1)=30 m//s=sqrt((I)/(mu))`
`rArr T=muxx900=1.3xx10^(-4)xx900 =0.12 N`.
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