In the double slit experiment of Figure the electric fields of the waves arriving at point P are given by E1 (2 00V m) sin (l 26 x 1015)t E2 (2 00V m) sin (l 26 x 1015)t 39 6 rad , where time is in seconds (a) What is the amplitude of the resultant electric field at point P (b) What is the ratio of...

a We can use phasor techniques or use trig identities Here we show the latter ap ...

In the double-slit experiment of Figure the electric fields of the waves arriving at point P are

Question:

In the double-slit experiment of Figure the electric fields of the waves arriving at point P are given by
E1 = (2.00μV/m) sin [(l .26 x 1015)t]
E2 = (2.00μV/m) sin [(l .26 x 1015)t + 39.6 rad], where time / is in seconds.
(a) What is the amplitude of the resultant electric field at point P?
(b) What is the ratio of the intensity Ip at point P to the intensity Icen at the center of the interference pattern?
(c) Describe where point P is in the interference pattern by giving the maximum or minimum on which it lies, or the maximum and minimum between which it lies. In a phasor diagram of the electric fields,
(d) At what rate would the phasors rotate around the origin and
(e) What is the angle between the phasors?