A string of length \( 1.5 \mathrm{~m} \) with its two ends clamped ...

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A string of length \( 1.5 \mathrm{~m} \) with its two ends clamped is vibrating in fundamental mode. Amplitude at the
\( \mathrm{P} \) centre of the string is \( 4 \mathrm{~mm} \). Distance between the

W two points having amplitude \( 2 \mathrm{~mm} \) is
(1) \( 1 \mathrm{~m} \)
(2) \( 75 \mathrm{~cm} \)
(3) \( 60 \mathrm{~cm} \)
(4) \( 50 \mathrm{~cm} \)
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