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authorpriyanka2015-06-24 15:03:17 +0530
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+//Chapter-2,Example2_4_11,pg 2-28
+
+m=1 //first ordr spectrum
+
+wavelength=5790*10^-10 //wavelength of light
+
+angle=19.994 //angle of diffraction
+
+N=2.54*sind(angle)/(m*wavelength*100)
+
+printf('\nNumber of lines per 2.54 cm is N = %.0f lines',N)