Q. What will be the resultant decibel level when two sources make noise of equal decibels?
A. Decibel level will be the same
B. Decibel level will increase by 3 decibels
C. Decibel level will decrease by 3 decibels
D. Decibel level will be equal to the sum of decibels of the two sources
Answer: Decibel level will increase by 3 decibels
