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    If intensity is proportional to amplitude squared, why is it that when intensity doubles , amplitude increases by a factor of root 2? I only understand that if amplitude doubles, intensity increases by a factor of 4
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    (Original post by scientific222)
    If intensity is proportional to amplitude squared, why is it that when intensity doubles , amplitude increases by a factor of root 2? I only understand that if amplitude doubles, intensity increases by a factor of 4
    try substituting things into kA^2=I, or aby other square relationship (sqrt2)^2=2...
 
 
 
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