Two pulses travel in mutually opposite directions in a string \( \m...

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Two pulses travel in mutually opposite directions in a string
\( \mathrm{P} \) with a speed of \( 2.5 \mathrm{~cm} / \mathrm{s} \) as shown in the figure. Initially the pulses are \( 10 \mathrm{~cm} \) apart. What will be the state of the string
W after two seconds
(a)
(c)
(d)
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