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8. 10. If a particular sound 81 is 8 times more intense than another sound 82, then what is the difference in sound intensity levels

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8. 10. If a particular sound 81 is 8 times more intense than another sound 82, then what is the difference in sound intensity levels in dB for these two sounds? A. 3.2 dB B. 6.3 dB C. 9.5 dB D. 12 dB How many nodes are present in the standing wave for a 3rd harmonic to form in an open~pipe resonator (two open ends)? A. 2 B. 3 C. 4 D. 5 A sound with a frequency of 1560 Hz resonates at the 5th harmonic in a graduated cylinder. What is the frequency of sound that will form a 1st harmonic? A. 312 Hz B. 520 Hz 0. 4680 Hz D. 7800 Hz

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