2 files changed, 53 insertions, 0 deletions
diff --git a/2243/CH4/EX4.4/Ex4_4.sce b/2243/CH4/EX4.4/Ex4_4.sce
new file mode 100755
index 000000000..8a33a0235
--- /dev/null
+++ b/2243/CH4/EX4.4/Ex4_4.sce
@@ -0,0 +1,21 @@
+clc();
+clear;
+//Given :
+d = 8.8*10^-2 ; // slit width in mm
+b = 0.7;// seperation between slits in mm
+lambda = 6328 ; //Wavelength in A
+//First diffraction minima is possible, when  d*sin(theta) = lambda
+// 1 A = 1.0*10^-7 mm
+theta = asind((lambda*10^-7)/d); // angle in degrees
+printf("theta = %.3f degrees .\n\n",theta);
+//interference minima is possible , when sin(theta) = ((p + 1/2)*lambda)/b
+for p = 0 : 10
+    //1 A = 1.0*10^-7 mm
+    theta1 = asind((p + 1/2)*(lambda*10^-7/b)); // angle in degrees 
+    printf("When p = %d \n",p);
+    printf("theta = %.3f degrees . \n\n",theta1);
+ if(theta1 > theta)
+     printf(" When p >= %d ,  theta > %.3f degrees .\n\nBetween the first two diffraction minima , %d interference minima are possible.",p,theta,2*p);
+     break;
+ end
+end
diff --git a/2243/CH4/EX4.4/Res4_4.txt b/2243/CH4/EX4.4/Res4_4.txt
new file mode 100755
index 000000000..aef20b751
--- /dev/null
+++ b/2243/CH4/EX4.4/Res4_4.txt
@@ -0,0 +1,32 @@
+  theta = 0.412 degrees .
+
+When p = 0 
+theta = 0.026 degrees . 
+
+When p = 1 
+theta = 0.078 degrees . 
+
+When p = 2 
+theta = 0.129 degrees . 
+
+When p = 3 
+theta = 0.181 degrees . 
+
+When p = 4 
+theta = 0.233 degrees . 
+
+When p = 5 
+theta = 0.285 degrees . 
+
+When p = 6 
+theta = 0.337 degrees . 
+
+When p = 7 
+theta = 0.388 degrees . 
+
+When p = 8 
+theta = 0.440 degrees . 
+
+ When p >= 8 ,  theta > 0.412 degrees .
+
+Between the first two diffraction minima , 16 interference minima are possible.
+\ No newline at end of file