How Is the Two-Slit Interference Pattern Formed and Analyzed?

AI Thread Summary
The discussion centers on the formation and analysis of the two-slit interference pattern, specifically regarding the mathematical relationships that define the maxima and minima. The formula λ = ws/D is proposed for finding the distance between maxima, where w represents this distance. Additionally, the equation dsin(theta) = nλ is suggested for determining the minima of the main envelope. Participants inquire about the physical appearance of the pattern, noting that brighter regions may contain darker regions. Clarifications are sought on the definitions of variables d, D, and s in the context of the interference pattern.
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http://img504.imageshack.us/img504/3341/img186je6.th.jpg

Above is an image scanned in from my textbook of an interefernce pattern from two slits.

Am I correct in thinking that the distance between the maxima within the main envelope is found via λ = ws/D , where w = this distance?

Also, would the minima of the main envelope be found using dsin(theta)= nλ?


How would should a pattern physically be seen? Would the brighter regions have a series of darker regions within them?

Thanks!
 
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What are d, D, and s?
 

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