(a) At what value of y p do the rayshave the minimum possible phase (path length
ID: 1727027 • Letter: #
Question
(a) At what value of yp do the rayshave the minimum possible phase (path length) difference?(b) What multiple of gives that minimum phasedifference?
(c) At what value of yp do the rayshave the maximum possible phase difference?
(d) What multiple of gives that maximum phasedifference?
(e) What multiple of gives the phase differencewhen yp = d?
(f) When yp = d, is theresulting intensity at point P maximum, minimum,intermediate but closer to maximum, or intermediate but closer tominimum?
---Select---maximumminimumintermediate closer to maxintermediate closer to min
Explanation / Answer
(a) the minimum path length difference occurs whenboth rays are nearly vertical this would correspond to a point asfar up in the picture as possible treating the screen as if it extended foreverthen the point is at y = (b) when both the rays are nearly vertical there isno path length difference between them thus at y = thephase difference is zero (c) at y = 0 both rays are horizontal with the rayfrom S1 being longer than one from S2 bydistance d (d) as d = 6.20 then the phase difference here is = 6.20wavelengths and is at its maximum value (e) = (L1 - L2) /
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