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+//Example 27.4

+lambda=550*10^-9;//Wavelength (m)

+m2=2;//Order of interference

+theta2=45;//Angle for second diffraction minimum (deg)

+D=m2*lambda/sind(theta2);//Slit width (m)

+printf('a.Width of the slit = %0.2e m',D)

+m1=1;//Order of interference

+theta1=asind(m1*lambda/D);//Angle for first diffraction minimum (deg)

+printf('\nb.Angle for the first minimum produced = %0.1f deg',theta1)

+//Openstax - College Physics

+//Download for free at http://cnx.org/content/col11406/latest