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

Two stars 18 light-years away are barely resolved by a 68 -cm (mirror diameter) telescope. How far apart are the stars? Assume \lambda = 540 <units>nm</units> and that the resolution is limited by diffraction.

Express your answer using two significant figures.

2. Relevant equations

Theta=(1.22 lambda)/diameter of the lense

9.4605284 × 10^15 meters

3. The attempt at a solution

I have no clue how to do this. I plugged the give info into the equation and got theta to equal 9.6882352941176470588235294117647e-7 then i just plugged this into the Pythagorean equation to get 559491313771834207552834.45286104

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# Homework Help: How far apart are two stars

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