blob: 955ff3493fc2459a48e7509700378de40966ab39 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
//chapter8,Example8_16,pg 209
n=2
grat=1/5000//transmission grating
lam=5893*10^-8
dtheta=(2.5*3.14)/(180*60)//change in angular displacement(in radian)
//(a+b)=grat
//dlam=((a+b)cos(theta)/n)dtheta
cos(theta)=sqrt(1-(((n*lam)/grat)^2))
dlam=(dtheta*grat*cos(theta))/n//difference in wavelength
f=30//focal length
dl=f*dtheta//linear separation
printf("difference between two yellow lines (in cm)\n")
disp(dlam)
printf("\nlinear separation\n")
printf("dl=%.4f cm",dl)
|
