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The transverse displacement of a string fixed at both ends is given by \( y=0.06 \sin \left(\frac{2 \pi x}{3}\right) \cos (120 \pi t) y \) and \( x \) are in metres
\( \mathrm{P} \) and \( t \) in seconds. The wavelength and frequency of the two

W superposing waves are
[AMU PMT 2009]
(a) \( 2 m, 120 \mathrm{~Hz} \)
(b) \( \frac{2}{3} m, 60 \mathrm{~Hz} \)
(c) \( \frac{3}{2} m, 120 \mathrm{~Hz} \)
(d) \( 3 m, 60 \mathrm{~Hz} \)
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