(a) What is the intensity of a `60 dB` sound ? (b) If the sound level is `60 dB` close to a speaker that has an area of `120 cm ^(2)` . What is the acoustic power output of the speaker?

How many times more intense is a 60 dB sound than a 30 dB sound ?

How Many times more intense is a 60 dB sound than a 30 dB sound ?

How Many times more intense is a 60 dB sound than a 30 dB sound ?

A rock band give rise to an average sound level of 102 dB at a distance of 20 m from the center of the band . As an approximation , assume that the band radiates sound equally into a sphere. What is the sound power output of the band?

A rock band give rise to an average sound level of 102 dB at a distance of 20 m from the center of the band . As an approximation , assume that the band radiates sound equally into a sphere. What is the sound power output of the band?

A sound absorber attenuates the sound level by 20 dB . The intensity decreases by a factor of