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//Ex1_7
//given
//page no 12
clc;
clear;
disp('Solution (i)');
c=3*10^8; //in m/s speed of light
l=640; //in nm
u=2.2*10^8; //in m/s
lm=u*l/c; //wavelenth in medium
printf("\n The wavelength is %0.1f nm\n",lm);// The answer in the book is misprinted
disp('Solution (ii)');
n=l/lm; //refractive index
printf("\n Refractive Index is %0.3f \n",n);//The answer in the book is misprinted
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