A- When five people were talking in a small room, the sound intensity level was 64 dB everywhere within the room. Then, there were 10 people talking in similar manner simultaneously in the room, what was the resulting sound intensity level (in dB ) B- A bell emits sound energy uniformly in all directions. If the intensity of the sound wave 100 meters from the bell is 3.2×10−8 W/m2 Calculate the intensity of the wave 10.0 m from the bell?