76. An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of ?
(a) small focal length and large diameter
(b) large focal length and small diameter
(c) small focal length and small diameter
(d) large focal length and large diameter
Answer : (d) large focal length and large diameter
No comments:
Post a Comment
Please provide your valuable feedback. Students, Parents, Teachers.