A source emits sound waves of frequency \( 1000 \mathrm{~Hz} \). Th...

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A source emits sound waves of frequency \( 1000 \mathrm{~Hz} \). The source moves to the right with a speed of \( 32 \mathrm{~m} / \mathrm{s} \) relative to ground. On the right a reflecting surface moves towards left with a speed of \( 64 \mathrm{~m} / \mathrm{s} \)
P relative to the ground. The speed of sound in air is \( 332 \mathrm{~m} / \mathrm{s} \). Find

W the wavelength of sound in air incident on reflecting surface
\( \frac{\pi}{n}(\mathrm{Ctrl})= \)
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