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clc;
clear;
lambda=5*10^-5 //wavelength in cm
e=1/6000 //No. of lines per centimeter on the grating surface
//calculation
//1st order
theta_1= asind(lambda/e) //angle in degree
//3rd order
theta_3= asind((3*lambda)/e) //angle in degree
angle_of_deviation = theta_3 - theta_1
printf("Difference in the angle of deviation in the first order and third order spectra = %1.1f degrees",angle_of_deviation)
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