The speed of sound in a gas, in which two waves of wavelength \( 1....

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The speed of sound in a gas, in which two waves of wavelength \( 1.0 \mathrm{~m} \) and \( 1.02 \mathrm{~m} \) produce 6 beats per second, is approximately:
(A) \( 350 \mathrm{~m} / \mathrm{s} \)
(B) \( 300 \mathrm{~m} / \mathrm{s} \)
(C) \( 380 \mathrm{~m} / \mathrm{s} \)
\( \mathrm{P} \)
(D) \( 410 \mathrm{~m} / \mathrm{s} \)
W
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