Q. 13

The eyepiece of an astronomical telescope has a focal length of 10 cm. The telescope is

focussed for normal vision of distant objects when the tube length is 10 m. Find the focal length of the objective and the magnifying power of the telescope.

Answer :

Given data-


The astronomical telescope is normally adjusted


Focal length of the eyepiece of the telescope, fe = 10 cm


Length of the tube, L = 1 m = 100 cm


To calculate the focal length of the objective, we have the relation-





Magnifying power of the telescope-




Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Stereo Isomerism (Optical) | Mastering important conceptsStereo Isomerism (Optical) | Mastering important conceptsStereo Isomerism (Optical) | Mastering important concepts62 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :