Resolution power minimum resolvable viewing angle of a teles
     Resolution power (minimum resolvable viewing angle) of a telescope depends on  Distance to the viewing object.  Brightness of object.  Aperture of the objective lens.  Focal length of the objective lens. 
  
  Solution
Resolution power depends upon aperture of objective lens.
Resolution power is an ability of an instrument to distinguish the two close objects separately. The minimum
 distance between two close objects that can be resolved by an instrument is termed as resolution
 limit.
Resolving power is directly proportional to diameter of objective lens

