1 files changed, 17 insertions, 0 deletions
diff --git a/1730/CH1/EX1.7/Exa1_7.sce b/1730/CH1/EX1.7/Exa1_7.sce
new file mode 100755
index 000000000..2d731cb19
--- /dev/null
+++ b/1730/CH1/EX1.7/Exa1_7.sce
@@ -0,0 +1,17 @@
+//Exa7
+clc;
+clear;
+close;
+//given data :
+lambda=0.842; //in Angstrum
+lambda=lambda*10^-10; // in meter
+//theta=8degree 35minutes
+theta=8+35/60;//in degree
+n=1;//(first order)
+//Formula n*lamda=2*d*sin(theta)
+d=n*lambda/(2*sind(theta))
+//For third Order reflection :
+//Formula n*lamda=2*d*sin(theta)
+n=3;//order
+theta=asind(n*lambda/(2*d));
+disp(round(theta),"Angle of incidence for third order reflection in degree : ");
+\ No newline at end of file