Equation of travelling wave on a stretched string of linear density...

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Equation of travelling wave on a stretched string of linear density \( 5 \mathrm{~g} / \mathrm{m} \) is \( y=0.03 \sin (450 t-9 x) \) where distance
\( \mathrm{P} \) and time are measured is SI units. The tension in the string

W is
[JEE (Main) 2019]
(a) \( 12.5 \mathrm{~N} \)
(b) \( 7.5 \mathrm{~N} \)
(c) \( 10 \mathrm{~N} \)
(d) \( 5 \mathrm{~N} \)
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