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somecelxis
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Homework Statement
The energy transferred per second by a progressive waves is directly proportional to the square of amplitude . If two different amplitude waves superpose , the energy per second transferred by the resulatant waves us direcly proportional to (ANS: the diffrence of amplitude)
why the ans shouldn't be sum of amplitude?
Homework Equations
The Attempt at a Solution
in my opinion , when 2 waves superposed , the resultant intensity is I1 +I2 ...but intensity is directly proportional to amplitude square , so the resultant amplitude should be sqrt root of ( (I1)^2 + (I1)^2 )