Two waves are represented by the equations y1 = a sin (ωt

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

Here, y₁ = a sin (ωt + kx + 0.57)
and y₂ = a cos (ωt + kx)

= a sin		π	+ (ωt + kx)
		2

Phase difference, ∆φ = φ₂– φ₁

=	π	- 0.57
	2

=	3.14	- 0.57
	2

= 1.57 – 0.57
= 1 radian