A certain sound level is increased by an additional 20 dB. By how much does its intensity increase?

A certain sound level is increased by an additional 20 dB. By how much does its intensity increase?

Answer says 100. Can someone please solve and please explain how to do it w/out a calculator ( i know the equation contains log)

1 Answer

  • Given:

    Sound intensity level increased by LI = 20 dB

    Factor = 10^(LI/10) = 10^(20/10) = 10^2 = 10² = 100.

    Cheers ebs

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