I have a question about a limiting angle of resolution when viewed from a circular aperture.(adsbygoogle = window.adsbygoogle || []).push({});

I'm trying to find the distance between two lights of a certain wavelength. The lights appear to merge into one at a given distance when viewed through an aperture of some given size.

So far I've tried these equations:

theta(min)=1.22(lambda/D)

I know both lambda and D (diameter), so I now know theta(min).

Now I've tried

theta(min)=d/L

where I know L(distance at which the lights appear to merge) but not d. After solving for d I still can't get the right answer. If anyone could help me out a it'd be great. Thanks a lot.

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# Homework Help: Limiting angle of resolution question

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