Q 9.29 (a)  For the telescope described in Exercise 9.28 (a), what is the separation between the objective lens and the eyepiece?
              

Answers (1)
P Pankaj Sanodiya

a) Given,

focal length of the objective lens = f_{objective}= 140cm

focal length of the eyepiece lens = f_{eyepiece} = 5 cm 

The separation between the objective lens and eyepiece lens is given by:

f_{eyepiece}+f_{objective}=140+5=145cm

Hence, under normal adjustment separation between two lenses of the telescope is 145 cm.

Exams
Articles
Questions