A certain sound source is increased in sound level by 30.0 dB. Bu what multiple is its intensity increased?
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A certain sound source is increased in sound level by 40.0dB.(a) By what multiple is its intensity increased?_________X(b) By what multiple is its pressure amplitude increased?__________X
At a distance of 5.0 m from a point sound source, the sound intensity level is 110 dB. At what distance is the intensity level 95 dB?
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 30.0 dB. The hearing aid picks up sound having a frequency of 250Hz at an intensity of 3.0 x 10^-11 W/m2. What is the intensity of the sound?