(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

OK, so this is a very basic question but i am uncertain what the relationship is. I know its logarithmic, but i don't know how to draw a conclusion. Here is the question:

If you want an amplifier which will give a sound output which is twice as lod as your present 20 W amplifier, what amplifier power should you buy? What if you wanted a sound output four times as loud?

2. Relevant equations

3. The attempt at a solution

I know that the relationship between Intensity and Wattage is logarithmic, but how do i draw a numeric conclusion?

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# Intensity and Wattage

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