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if by displacement you mean amplitude , then the amplitube was 20mm . A traveled 80mm in one complete oscillation ( 1 oscillation = max position to min and then back to max position = 4 amplitude)
even if it's 20 mm Sirf 1 marks ka tha, chillax dude.
Well,
Well, a wave has only two amplitudes, one that is a crest the other one is a trough. Since displacement from equilibrium is a vector quantity there returning back to the equilibrium position wnt be counted as displacement. Hence it is 40 mm
Are you really a dumb idiot?u are confusing displacement with distance traveled. anyways u r right , it was only worth 1 mark
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