Wave motionMedium
Question
Two wave are represented by the equations y1 - a sin ωt and y2 = a cos ωt. The first wave : -
Options
A.leads the second by π
B. lags the seconds by π
C.leads the second by 
D.lags the by
Solution
y1 = a sint = a cos y1 = a sin ωt = a cos (ωt = π / 2)
y2 = a cos ωt
y2 = a cos ωt
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