Single and double slit diffraction formulae

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Is the formula for single slit diffraction [tex]Dsin\theta = m\lambda[/tex] identical to the double slit diffraction besides m being minima rather than maxima? More specifically will m + 1/2 tell me the angles between maxima?
 
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Doc Al
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Is the formula for single slit diffraction [tex]Dsin\theta = m\lambda[/tex] identical to the double slit diffraction besides m being minima rather than maxima?
Yes, where D is the distance between the slits instead of the slit width.
More specifically will m + 1/2 tell me the angles between maxima?
No, except approximately. Finding the maxima for single slit diffraction is more complicated.
 

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