What's the relation between angular resolution and distance

[Cocoleia]

Homework Statement

At first I needed to calculate the angular resolution of a telescope (diameter 1m, for visible light) so I used θ=1.22λ/D and got 4.88x10^-7 rad. Now I am asked: "If we wished to use this telescope to image the moon, what is the closest distance two objects can be to be distinguished by such a telescope?"
I don't understand what the relationship between angular resolution and distance is.

Homework Equations

θ=1.22λ/D

 

[jedishrfu]

Perhaps this a wiki article will help:

https://en.m.wikipedia.org/wiki/Angular_resolution

 

[Cocoleia]

Perhaps this a wiki article will help:

https://en.m.wikipedia.org/wiki/Angular_resolution

Is it just a matter of converting my answer to meters?

 

[haruspex]

Is it just a matter of converting my answer to meters?

You cannot "convert" radians to metres.
If two points on the moon are distance x apart, what is their angular separation when viewed from Earth?