Question

What is the intensity of a sound wave with a relative intensity of 71.3 dB?7.41x10-20 W/m²1.35x107 W/m2KID1.35x1019 W/m²AID1.35x105 W/m²

Answer 1

Given:

The sound is,

`B=71.3\text{ dB}`

Required: intensity of the sound wave is to be found.

Step-by-step explanation:

to find the intensity of the sound wave, we will use the formula that is given by

`B=\log_(10)(I)/(I_0)`

Plugging the value of B in the above relation, and solve for I/I0,we get:

`\begin{gathered} 71.3\text{ dB}=10*\log_(10)(I)/(I_0) \\ solving\text{ }, \\ (I)/(I_0)=10^(7.13) \\ (I)/(I_0)=13489628.83\text{ } \\ (I)/(I_0)\approx1.35*10^7\text{ w/m}^2 \end{gathered}`

Thus, the intensity of the