" Aperture of an eye can be changed by:- "

Human eye can be compared to

The shape of eye lens is changed by

The shape of eye lens is changed by

The shape of eye lens is changed by

The shape of eye lens is changed by

Calculate the least value of the angular separation of two stars which can be resolved by a telescope of 200 cm aperture. If the aperture of the human eye be 2mm and if the focal length of the eyepiece be 1 inch, what must be the minimum focal length of the objective if full resolving power of the telescope is to be utilized. Take lambda = 5500 A^(0) .