What will be the ratio of the resolving powers of two convex lenses used as objective lens in astronomical telescope, having same focal length and apertures as `A_1 and A_2 (A_1 > A_2)`? Which telescope will you prefer and why?

Two convex lenses of same focal length but of paerture A_(1) and A_(2)(A_(2) lt A_(1)) are used as the objective lenses in two astronomical telescope having identical eye pieces. What is the ratio of their resolving power ? Which telescope will you prefer and why ? Give reason.

A planet is observed by astronomical refracting telescope having an objective of focal length 16cm and an eyepiece of focal length 2cm.

A planet is observed by an astronomical refracting telescope having an objective of ofcal length 16m and an eyepiece of focal length 2 cm. Then,

Why we use the objective lens of larger aperture to increase the resolving power of telescope ?

In an astronomical telescope, the focal length of the objective lens is 100 cm and of eye-piece is 2 cm . The magnifying power of the telescope for the normal eye is

The objective lenses of two telescope have the same apertures but their focal lengths are in the ration 1 : 2 . Compare the resolving powers of the two telescopes.

Your are given following three lense. Which two lenses will you use as an eyepiece and as an objective to construct as astronomical telescope ?