(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A helium neon laser (642nm) illuminates a single slit and is observed on a screen 2.5m behind the slit. The distance between the first and second minima in the pattern is 4.75mm. What is the width of the slit in mm??

Any help here would be greatly appreciated

2. Relevant equations

w= {2 (lamda) Distance}/ (minima slit distance/distance observed??)

3. The attempt at a solution

w= 2(642x10^-9)(2.5)/(.00475/2.5)

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# Homework Help: Single Slit/Diffraction Problem

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