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clc
//to calculate angle
lambda=6000*10^-8 //wavelength of light in cm
e=0.03 //width of slit in cm
//e*sintheta=m*lambda,where m=1
theta=asind(lambda/e)
disp("angle at which the first dark band are formed in the fraunhofer diffraction pattern is theta="+string(theta)+"degree")
theta1=asind(3*lambda/(2*e))
disp("angle at which the next bright band are formed in the fraunhofer diffraction pattern is theta1="+string(theta1)+"degree")
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