3 files changed, 49 insertions, 0 deletions
diff --git a/3875/CH1/EX1.2/1_2.txt b/3875/CH1/EX1.2/1_2.txt
new file mode 100644
index 000000000..28cb590e2
--- /dev/null
+++ b/3875/CH1/EX1.2/1_2.txt
@@ -0,0 +1,9 @@
+(a)
+Resistive force constant c = 2e-03 newton-s/meter
+(b)
+Natural angular frequency omega_n = 10 rad/s
+(c)
+Damping ratio eta = 1e-03
+Q factor = 500
+(d)
+percent change in frequency = 5e-05
diff --git a/3875/CH4/EX4.14/4_14.txt b/3875/CH4/EX4.14/4_14.txt
new file mode 100644
index 000000000..5e76ebafb
--- /dev/null
+++ b/3875/CH4/EX4.14/4_14.txt
@@ -0,0 +1,9 @@
+ The wavelength of light for first order is = 1.20e-04 cm and it lies in the infrared region
+
+ The wavelength of light for second order is = 6.0e-05 cm and it lies in the visible region
+
+ The wavelength of light for third order is = 4.0e-05 cm and it lies in the visible region
+
+ The wavelength of light for fourth order is = 3.0e-05 cm and it lies in the ultravoilet(invisible) region
+
+The absent wavelengths in the reflected light are 6.0e-05 cm and 4.0e-05 cm
+\ No newline at end of file
diff --git a/3875/CH4/EX4.14/Ex4_14.sce b/3875/CH4/EX4.14/Ex4_14.sce
new file mode 100644
index 000000000..defad8c24
--- /dev/null
+++ b/3875/CH4/EX4.14/Ex4_14.sce
@@ -0,0 +1,31 @@
+clc;
+clear;
+i=35 //angle of incidence in degree
+myu=1.33 //refractive index
+d=5*10^-5 //thickness of the soap film in cm
+n1=1 //for first order 
+n2=2 //for second order 
+n3=3 //for third order 
+n4=4 //for fourth order 
+
+//calculation
+r=asind(sind(i)/myu) //angle of refraction in degree
+
+//case(1) for first order
+lambda_1=(2*myu*d*cosd(r))/n1
+
+//case(2) for second order
+lambda_2=(2*myu*d*cosd(r))/n2
+
+//case(3) for third order
+lambda_3=(2*myu*d*cosd(r))/n3
+
+//case(14) for fourth order
+lambda_4=(2*myu*d*cosd(r))/n4
+
+
+mprintf("\n The wavelength of light for first order is = %1.2e cm and it lies in the infrared region\n",lambda_1)
+mprintf("\n The wavelength of light for second order is = %1.1e cm and it lies in the visible region\n",lambda_2)
+mprintf("\n The wavelength of light for third order is = %1.1e cm and it lies in the visible region\n",lambda_3)
+mprintf("\n The wavelength of light for fourth order is = %1.1e cm and it lies in the ultravoilet(invisible) region\n",lambda_4)
+mprintf("\nThe absent wavelengths in the reflected light are %1.1e cm and %1.1e cm",lambda_2,lambda_3)