Q: The two waves are represented by
y1 = 10-6 sin(100t+x/50+0.5)m
y2 = 10-2 cos(100t+x/50)m
where x is in metres and t in seconds. The phase difference between the waves is approximately:

(a) 1.07 rad

(b) 2.07 rad

(c) 0.5 rad

(d) 1.5 rad

Ans: (a)