The ratio of intensities in consecutive maxima in a diffraction pattern due to a single slit is

Step-by-step solution

I = I 0 sin α α 2 and α = 0 , 3 π 2 , 5 π 2 ,   … … … , for maxima The ratio of Intensities of successive maxima is 1   : 2 3 π 2   : 2 5 π 2 or 1   :   4 9 π 2   : 4 25 π 2