Galilean Telescope
Category : JEE Main & Advanced
It is also type of terrestrial telescope but of much smaller field of view.
(1) Objective is a converging lens while eye lens is diverging lens.
(2) Magnification : \[{{m}_{D}}=\frac{{{f}_{0}}}{{{f}_{e}}}\left( 1-\frac{{{f}_{e}}}{D} \right)\] and \[{{m}_{\infty }}=\frac{{{f}_{0}}}{{{f}_{e}}}\]
(3) Length : \[{{L}_{D}}={{f}_{0}}-{{u}_{e}}\] and \[{{L}_{\infty }}={{f}_{0}}-{{f}_{e}}\]
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