From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1949/CH1/EX1.11/1_11.sce | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100755 1949/CH1/EX1.11/1_11.sce (limited to '1949/CH1/EX1.11') diff --git a/1949/CH1/EX1.11/1_11.sce b/1949/CH1/EX1.11/1_11.sce new file mode 100755 index 000000000..548c970b7 --- /dev/null +++ b/1949/CH1/EX1.11/1_11.sce @@ -0,0 +1,20 @@ +//Chapter-1,Example 1_11,Page 1-22 +clc() + +//Given Data: +i=asin(4/5) //angle of incidence +u=4/3 //Refractive index of a soap film +lam1=6.1*10^-7 //wavelength of light +lam2=6*10^-7 //wavelength of light + +//Calculations: +//u=sin i/sin r //Snell's law .So, +r=asin(sin(i)/u) //angle of reflection + +//Now, condition for dark band is +//2ut*cos r=n*lam +//for consecutive bands, n=lam2/(lam1-lam2). hence + +t=lam2*lam1/((lam1-lam2)*2*u*sqrt(1-(sin(i)/u)^2)) //thickness of film +printf('Thickness of the film is =%.7f m',t) + -- cgit