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Re: Diffraction

brian whatcott wrote:

At 21:35 9/24/99 -0400, you wrote:
Good approach, Brian. But the quantitative calculation shows that the
first minimum (zero) occurs at an angle such that the wavelets from the
two slit ends are IN PHASE. The wavelets cancel in pairs, with the first
pair being one end and the center (these are 180 deg out of phase).

Bob

Good catch, Bob!
The elementary approach I sketched works better for two slits.

Can't the single slit be considered in the same way as two slits if one
considers each half of the slit separately?

Cliff Parker