57) If the intensity of sound changes (increases) by 57) factor of 100, the decibel level changes by factor A) 10. B) 1. C) 100. log ` 100. E) 20. 58) Two coherent sound waves will destructively interfere when the path difference is the times what? 58) wavelength A) half an odd integer B) half an even integer C) an odd integer D) an integer
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If the intensity increases by a factor of 100, we have: dB_new = 10 * log10(100 * I/I0) Now, we want to find the factor by which the decibel level changes. Let's call this factor x: dB_new = x * dB Substituting the expressions for dB and dB_new, we get: 10 * Show more…
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