. An astronomical telescope has an angular magnification of magnitude 5 for distance objects. The separation between the objective and the eye piece is


(a) fo = 45 cm and fe = –9 cm                                                

(b) fa = 50 cm and fe = 10 cm

(c) fo­­ = 7.2 cm and fe = 5 cm                                                 

(d) fo = 30 cm and fe = 6 cm

 

Best Answer

Image formed by objective (I1) is at second focus of it because objective is focused for distance objects. Therefore,

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