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

In a Youngs dbl. slit experiment using green light the fringe width was observed to be 0.20mm.if red light replaces green light,what will be the fringe width?

2. Relevant equations

hmm lambda=ay/d but (no info is given on rest)=/

wavelengths:green=5.2x10^-7m ,red=6.5x10^-7m

3. The attempt at a solution

well i dont know if its correct but i tried to solve it.by dividing the wavelength of of red over greens and i got 1.25m which i multiplied to (2x10^-4) <---- which is the fringe width of green .=/ i totally made it up .sos here =)

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# Homework Help: Youngs double slit exp.

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