- #1
Dexter Neutron
- 50
- 0
Two different waves are starting froms points A,B respectively and going to a point C such that
$$AC - BC = 2\lambda$$
which corresponds to a phase difference of 4π
AC is given 7λ and BC is given 5λ
Now the second wave(BC) would need to have an initial phase of 4π so that the two waves can reach C at same time and interfere constructively
Thus Equations for wave AC,BC must be
$$y_1 = a\sin(\omega t + 4\pi)$$
since at t = 0 wave y1 is at 4π phase.
and
$$y_2 = a\sin(\omega t)$$
but in my book instead of +4π , -4π is written i.e.
$$y_1 = a\sin(\omega t - 4\pi)$$
How is that possible?
$$AC - BC = 2\lambda$$
which corresponds to a phase difference of 4π
AC is given 7λ and BC is given 5λ
Now the second wave(BC) would need to have an initial phase of 4π so that the two waves can reach C at same time and interfere constructively
Thus Equations for wave AC,BC must be
$$y_1 = a\sin(\omega t + 4\pi)$$
since at t = 0 wave y1 is at 4π phase.
and
$$y_2 = a\sin(\omega t)$$
but in my book instead of +4π , -4π is written i.e.
$$y_1 = a\sin(\omega t - 4\pi)$$
How is that possible?