2 The loudness L of a sound in decibels dB can be calculated

Last updated: 6/16/2023

2 The loudness L of a sound in decibels dB can be calculated using the formula L 10 log I in the intensity of the sound in watts per square metre W m and Io 10 12 W m A teacher is speaking to a class Determine the intensity of the teacher s voice if the sound level is 70 dB 2 marks