Single Choice

An astronomical telescope has an angular magnification of magnitude $$5$$ for distant object. The separation between the objective and the eye piece is $$36\ cm$$and final image is formed at infinity. The focal length of the objective and focal length of eye-piece respectively are:

A$$f_o=45\ cm$$ and $$f_e=-9\ cm$$
B$$f_o=50\ cm$$ and $$f_e=10\ cm$$
C$$f_o=7.2\ cm$$ and $$f_e=5\ cm$$
D$$f_o=30\ cm$$ and $$f_e=6\ cm$$
Correct Answer

Solution

SIMILAR QUESTIONS

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