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difference between astronomical telescope and galilean telescope

Posted by: admin in Quiz Bank June 18, 2017 0 429 Views

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Comparison table :

 

 

              Astronomical telescope     Galilean telescope
1:In an astronomical telescope the eye piece is a convex lens. 1:In Galilean telescope the eye piece is concave lens.
2:It forms an inverted image. 2:It forms an erect image.

3:The length  of astronomical telescope is:

L =f0   + fe

       3:The length of Galilean telescope is:

L =f0  –  fe

 

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