Question

Write unit of intensity of sound.

GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 23

Answer 1

Amplitude is the unit for intensity of sound

Answer 2

Answer:

The common unit of power is the watt ( 1w = 1 Joules/s). The unit of SL is called the decibel (abbreviated dB). I is the intensity of the sound expressed in watts per meter and Io is the reference intensity defined to be 10-12 w/m2.