# Single and double slit diffraction formulae

1. May 16, 2010

### EdTheHead

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.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook