Question
a certain Galilean telescope has a magnification of 2 times. if the focal length of the objective lens is 60 cm, how long is the telescope? thanks :))
Answers
bobpursley
A refractor's magnification is calculated by dividing the focal length of the optical tube with the focal length of the eyepiece.[1]
M=fo/fe
fo=length of tube=2*60cm
M=fo/fe
fo=length of tube=2*60cm
Related Questions
A laboratory (astronomical) telescope is used to view a scale that is 306 cm from the objective, whi...
The Yerkes refracting telescope has a 1 m
diameter objective lens of focal length 20 m.Assume it is...
An astronomical refracting telescope is made from two lenses. the objective lens has a focal length...
Simple astronomical telescope in normal adjustment has an objective of focal length 100 cm and an ey...