question_answer

The magnifying power of Gallilean telescope in the normal adjustment is 20. The difference between the magnifying power and length of the telescope is 19.05. The focal length of objective and eyepiece are (in m) :

A)  1 and -0.05                        

B)  0.05 and 2

C)  1 and 0.05                          

D)  2 and 0.05