initial commit / add all books

12 files changed, 196 insertions, 0 deletions

diff --git a/2243/CH4/EX4.10/Ex4_10.sce b/2243/CH4/EX4.10/Ex4_10.sce
new file mode 100755
index 000000000..5cdf41a53
--- /dev/null
+++ b/2243/CH4/EX4.10/Ex4_10.sce
@@ -0,0 +1,12 @@
+clc();

+clear;

+//Given:

+N = 15000;//Number of lines per inch

+a_plus_b = (2.54/N)*10^8 ;//Grating period in A

+lambda = 1 ; //Wavelength in A

+//Grating equation :(a+b)*sin(theta_n) = n*lambda

+//First order maximum 

+theta1 = asind(lambda/a_plus_b); // angle in degrees

+printf("The first order maximum will be obtained at : %.4f degrees .\n\n",theta1);

+

+

diff --git a/2243/CH4/EX4.10/Res4_10.txt b/2243/CH4/EX4.10/Res4_10.txt
new file mode 100755
index 000000000..2a6b63c90
--- /dev/null
+++ b/2243/CH4/EX4.10/Res4_10.txt
@@ -0,0 +1 @@
+ The first order maximum will be obtained at : 0.0034 degrees .
\ No newline at end of file
diff --git a/2243/CH4/EX4.11/Ex4_11.sce b/2243/CH4/EX4.11/Ex4_11.sce
new file mode 100755
index 000000000..7c296e980
--- /dev/null
+++ b/2243/CH4/EX4.11/Ex4_11.sce
@@ -0,0 +1,14 @@
+clc();

+clear;

+//Given:

+lambda = 6000; //Wwavelength in A

+mu = 1.33; //Refractive index for cornea

+D = 2; //Diameter of pupil in mm

+//Yellow light wavelength in eye:

+lambda1 = lambda/mu ; //Wavelength in A

+//The angular resolution 

+//1 A = 1.0*10^-7 mm

+theta_c = (1.22*lambda1*10^-7)/D; // angle in rad

+//Maximum value for L

+L = 1/tan(theta_c); // in mm

+printf("Maximum value for L should be : %.1f mm",L);

diff --git a/2243/CH4/EX4.11/Res4_11.txt b/2243/CH4/EX4.11/Res4_11.txt
new file mode 100755
index 000000000..04ff10bb2
--- /dev/null
+++ b/2243/CH4/EX4.11/Res4_11.txt
@@ -0,0 +1 @@
+ Maximum value for L should be : 3633.9 mm 
\ No newline at end of file
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
diff --git a/2243/CH4/EX4.6/Ex4_6.sce b/2243/CH4/EX4.6/Ex4_6.sce
new file mode 100755
index 000000000..19a053522
--- /dev/null
+++ b/2243/CH4/EX4.6/Ex4_6.sce
@@ -0,0 +1,24 @@
+clc();

+clear;

+//Given :

+// a+b = (2.54/N)cm

+N = 15000;//grating has 15000 lines

+a_plus_b = 2.54/N ; // grating element in cm

+//Grating equation, (a+b)*sin(theta_n) = n*lambda, we get :  theta_n = asind((n*lamba)/(a+b))

+printf("For line D1  and Wavelength 5890 A:\n\n");

+printf(" Angles at which first order and second order maxima will be observed are :\n");

+lambda1 = 5890; //Wavelength in A

+for n = 1:2 // First and second order maxima

+// 1 A = 1.0*10^-7 mm

+theta1_n = asind((n*lambda1*10^-8)/a_plus_b);// angle in degrees

+printf(" Order :%d ,%.3f degrees \n",n,theta1_n);

+end

+printf("For line D2 and Wavelength 5895.9 A :\n\n");

+printf(" Angles at which first order and second order maxima will be observed are :\n");

+lambda2 = 5895.9 ; //Wavelength in A

+for n1 = 1:2 //First and second order maxima

+// 1 A = 1.0*10^-7 mm

+ theta2_n = asind((n1*lambda2*10^-8)/a_plus_b);// angle in degrees

+ printf("Order : %d, %.3f degrees \n",n1,theta2_n); 

+end

+printf(" When n = 3,  sin(theta)= ((n*lambda*10^-8)/a_plus_b)>1 , which falls outside the sine range, hence third order maximum is not visible");

diff --git a/2243/CH4/EX4.6/Res4_6.txt b/2243/CH4/EX4.6/Res4_6.txt
new file mode 100755
index 000000000..c57594c14
--- /dev/null
+++ b/2243/CH4/EX4.6/Res4_6.txt
@@ -0,0 +1,11 @@
+For line D1  and Wavelength 5890 A:

+

+ Angles at which first order and second order maxima will be observed are :

+ Order :1 ,20.355 degrees 

+ Order :2 ,44.081 degrees 

+For line D2 and Wavelength 5895.9 A :

+

+ Angles at which first order and second order maxima will be observed are :

+Order : 1, 20.376 degrees 

+Order : 2, 44.136 degrees 

+ When n = 3,  sin(theta)= ((n*lambda*10^-8)/a_plus_b)>1 , which falls outside the sine range, hence third order maximum is not visible 
\ No newline at end of file
diff --git a/2243/CH4/EX4.8/Ex4_8.sce b/2243/CH4/EX4.8/Ex4_8.sce
new file mode 100755
index 000000000..bd3175f5e
--- /dev/null
+++ b/2243/CH4/EX4.8/Ex4_8.sce
@@ -0,0 +1,42 @@
+clc();

+clear;

+// Given :

+//(a) 15000 lines per inch 

+N1 = 15000; //15000 lines per inch

+a1_plus_b1 = (2.54/N1)*10^8 ; //grating element in A

+lambda1 = 5890; //Wavelength in A

+lambda2 = 5895.9 ; // Wavelength in A

+deltalambda1 = lambda2-lambda1; //in A

+//For first order

+n =1;

+theta1 = 20.355; // in degrees

+deltatheta1 = ((n*deltalambda1)/((a1_plus_b1)*cosd(theta1)));// dispersion in degrees/A

+rp1 = n*N1; // resolving power

+

+

+//(b)15000 lines per cm

+// 1 cm = 0.393701 inches, so We have 15000 lines per 0.393701 inches. 

+//Therefore, For 1 inch we have 15000/0.393701 = 38099.979 or 38100 lines

+N2 = 38100 ; //38100 lines per inch

+a2_plus_b2 = (2.54/N2)*10^8 ; //grating element in A

+//For first order

+theta_1 = asind((n*lambda1)/(a2_plus_b2));// in degrees

+deltatheta_1 = ((n*deltalambda1)/((a2_plus_b2)*cosd(theta_1)));//  dispersion in degrees/A

+rp2 = n*15000; // resolving power

+

+

+//(c)5906 lines per cm

+// 1 cm = 0.393701 inches, so We have 5906 lines per 0.393701 inches. 

+//Therefore, For 1 inch we have 5906/0.393701 =  15001.232  or 15001 lines

+N3 = 15001; //15001 lines per inch

+a3_plus_b3 = (2.54/N3)*10^8; //grating element in A

+//For first order

+theta__1 = asind((n*lambda1)/(a3_plus_b3)); // in degrees

+deltatheta__1 = ((n*deltalambda1)/((a3_plus_b3)*cosd(theta__1))); //  dispersion in degrees/A

+rp3 = n*5906; // resolving power

+

+printf(" Number of lines \tGrating element (in A)\t Angle of diffraction(degrees)\t Dispersion (degrees/A) \t Resolving Power\n");

+printf("%d /inch\t\t\t %.0f\t\t %.2f \t\t\t\t %.2f x 10^-3\t\t\t %d\n",N1,a1_plus_b1,theta1,deltatheta1*10^3,rp1);

+printf("%d /cm\t\t\t %.0f\t\t %.2f \t\t\t\t %.2f x 10^-3\t\t\t %d\n",15000,a2_plus_b2,theta_1,deltatheta_1*10^3,rp2);

+printf("%d /cm\t\t\t %.0f\t\t %.2f \t\t\t\t %.2f x 10^-3\t\t\t %d\n",5906,a3_plus_b3,theta__1,deltatheta__1*10^3,rp3);

+// Error in textbook for dispersion values . Error in decimal point placement .

diff --git a/2243/CH4/EX4.8/Res4_8.txt b/2243/CH4/EX4.8/Res4_8.txt
new file mode 100755
index 000000000..da7c0af7c
--- /dev/null
+++ b/2243/CH4/EX4.8/Res4_8.txt
@@ -0,0 +1,4 @@
+  Number of lines 	Grating element (in A)	 Angle of diffraction(degrees)	 Dispersion (degrees/A) 	 Resolving Power

+15000 /inch			 16933		 20.36 				 0.37 x 10^-3			 15000

+15000 /cm			 6667		 62.07 				 1.89 x 10^-3			 15000

+5906 /cm			 16932		 20.36 				 0.37 x 10^-3			 5906
\ No newline at end of file
diff --git a/2243/CH4/EX4.9/Ex4_9.sce b/2243/CH4/EX4.9/Ex4_9.sce
new file mode 100755
index 000000000..20d31d827
--- /dev/null
+++ b/2243/CH4/EX4.9/Ex4_9.sce
@@ -0,0 +1,21 @@
+clc();

+clear;

+//Given:

+//Wavelength

+n=1; // first order diffraction

+lambda1 = 4680 ;// Wavelength in A

+lambda2 = 4800; //Wavelength in A

+lambda3 = 5770 ; // Wave;ength in A

+// First order diffraction angle

+theta1 = 28.0; // angle in degrees

+theta2 = 28.7; // angle in degrees

+theta3 = 35.5; //angle in degrees

+//Grating equation : (a+b) = n*lambda/sin(theta) 

+a1_plus_b1 = (n*lambda1)/sind(theta1); //spacing in A

+a2_plus_b2 = (n*lambda2)/sind(theta2); //spacing in A

+a3_plus_b3 = (n*lambda3)/sind(theta3); //spacing  in A

+mean_spacing = (a1_plus_b1 + a2_plus_b2 + a3_plus_b3)/3; // mean spacing in A 

+printf("(a)Wavelength :%d  A \n Angle of 1st order Diffraction : %.1f degrees \n Spacing = %.1f A\n\n",lambda1,theta1,a1_plus_b1);

+printf("(b)Wavelength :%d  A \n Angle of 1st order Diffraction : %.1f degrees \n Spacing = %.1f A\n\n",lambda2,theta2,a2_plus_b2);

+printf("(c)Wavelength :%d  A \n Angle of 1st order Diffraction : %.1f degrees \n Spacing = %.1f A\n\n",lambda3,theta3,a3_plus_b3);

+printf("Mean Spacing = %.1f A",mean_spacing);

diff --git a/2243/CH4/EX4.9/Res4_9.txt b/2243/CH4/EX4.9/Res4_9.txt
new file mode 100755
index 000000000..f5d3758a2
--- /dev/null
+++ b/2243/CH4/EX4.9/Res4_9.txt
@@ -0,0 +1,13 @@
+ (a)Wavelength :4680  A 

+ Angle of 1st order Diffraction : 28.0 degrees 

+ Spacing = 9968.7 A

+

+(b)Wavelength :4800  A 

+ Angle of 1st order Diffraction : 28.7 degrees 

+ Spacing = 9995.3 A

+

+(c)Wavelength :5770  A 

+ Angle of 1st order Diffraction : 35.5 degrees 

+ Spacing = 9936.2 A

+

+Mean Spacing = 9966.7 A 
\ No newline at end of file