The objective of an astronomical telescope has a diameter of `150 mm` and
Channel: Doubtnut
Date: 2020-08-02

The objective of an astronomical telescope has a diameter of `150 mm` and focal length of `4.0 m`. The eye piece has a focal length of `25.0 mm`. Calculate the magnifying power and resolving power of telescope. What is the distance between objective and eye piece ? Take `lambda = 6000Å`.