Question

Two sound sources emitting sound intensity I¹ and I², where the sound intensity from source I¹ is ¼I². Determine the change in sound intensity

Answer 1

The change (difference) in sound intensity between I₁ and I₂ is

$$\Delta I=|I_1-I_2|=|(1/4)I_2-I_2)=\frac34I_2.$$