# Single and double slit diffraction formulae

1. May 16, 2010

Is the formula for single slit diffraction $$Dsin\theta = m\lambda$$ 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?

Last edited: May 16, 2010
2. May 16, 2010

### Staff: Mentor

Yes, where D is the distance between the slits instead of the slit width.
No, except approximately. Finding the maxima for single slit diffraction is more complicated.