blob: 7b8f851e1d1b812b63f525c955990aac7cbe0712 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
//Chapter-1,Example 1_3,Page 1-17
clc()
//Given Data:
i=30*%pi/180 //angle of incidence
u=1.46 //Refractive index of a oil
lam=5.890*10^-7 //wavelength of required yellow light
n=8 //eighth dark band
//Calculations:
//u=sin i/sin r //Snell's law .So,
r=asin(sin(i)/u) //angle of reflection
//Now, condition for dark fringe is
//2ut*cos r=n*lam
t=n*lam/(2*u*cos(r)) //thickness of film
printf('Thickness of the film is =%.10f m',t)
|
