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

The level of sound is attenuated by 30 dB by a sound absorber. The intensity of sound will decrease by a factor of

When a person wears a hearing aid, the sound intensity level increases by 30 dB. The sound intensity increases by

When a person wears a hearing aid, the sound intensity level increases by 30 dB. The sound intensity increases by

A sound of 20 dB is more intense than a sound of 10 dB by

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?

Two sounds differ in sound level by 3.00 dB. What is the ratio of the greater intensity to the smaller intensity?

A certain sound source is increased in sound level by 40.0 dB. By what multiple is (a) its intensity increased and (b) its pressure amplitude increased?

For a sound source of intensity IW//m^(2) , corresponding sound level is B_0 decibel If the intensity is increased to 4I , new sound level becomes.