A person was talking in a small room; and the sound intensity level is 60 dB everywhere within the room.

/in /by

A person was talking in a small room; and the sound intensity level is 60 dB everywhere within the room. Now, there are eight people talking in similar manner simultaneously in the room, what is the sound intensity level?

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now