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//Example 1.3
clc();
clear;
//To compare the intensity at a point distance 1mm from the center to that at its center and to find minimum dist from center of point
//Path difference=(Y*d)/D
y=1 //units in mm
y=y*10^-3 //units in mts
D=1 //units in mts
d=1 //units in mm
d=d*10^-3 //units in mts
pathdifference=(y*d)/D //units in mts
lamda=5893 //units in armstrongs
lamda=lamda*10^-10 //units in mts
phasedifference=(2*pathdifference)/lamda //units in pi radiand
ratioofintensity=(cos((phasedifference/2)*%pi))^2 //units in
printf("The ratio of intensity with central maximum is %.4f\n",ratioofintensity)
pathdifference=lamda/4
distance=(pathdifference*D)/d //units in mts
printf("The Distance of the point on the screen from center is %fmts",distance)
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