Question
Two waves are represented by the equations
y1 = $a$sin($\omega $t + kx + 0.57) m and
y2 = acos($\omega $t + kx) m, where x is in meter and t $in$ sec. The phase difference between them is
y1 = $a$sin($\omega $t + kx + 0.57) m and
y2 = acos($\omega $t + kx) m, where x is in meter and t $in$ sec. The phase difference between them is