apabila study di kala malam nan sepi..nota di tangan tapi fikiran melayang..it's not like a superposition, when the wave is occupy the same location at the same time..
besides, all the knowledge entered in mind will reflect such the law of reflection..da amount of knowledge entered is equal the knowlegde going out..
like the sign convention of mirror, when i'm sitting in front of a book i'll focus more on study (concave = +ve) but when i'm sitting in front of my lappy, everything is useless ( convex = -ve)
i hope what i'm studying is twice like the amplitude after the superposition..
sonok kan belajar fizik! ;)
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