The extension in a string obeying Hooke's law is \( x \). The speed...

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The extension in a string obeying Hooke's law is \( x \). The speed of sound in the stretched string is \( v \). If the extension in the string is increased to \( 1.5 \mathrm{x} \), the speed of sound will be
\( \mathrm{P} \)
[IIT 1996]
W
(a) \( 1.22 v \)
(b) \( 0.61 v \)
(c) \( 1.50 \mathrm{v} \)
(d) \( 0.75 v \)
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