Compare intensities:
80db vs 60db

Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is

where, P is the power through an area A.

The SI unit for I is {W/m}^{2}.

Sound intensity levels are quoted in decibels (dB) much more often than sound intensities in watts per meter squared.

The sound intensity level β in decibels of a sound having an intensity I in watts per meter squared is defined to be

where I₀ = 10⁻¹² W/m²

80dB sound intensity is greater than 60dB sound intensity.

80dB sound intensity can be found in loud radio and classroom lecture whereas 60dB sound intensity is the normal conversation.

in this image, you can see solar radiation going through ocean water.

no image, but probably absorption

talk back to him about the sport and show him your expertise or leave the room