COMEDK · Physics · 25. Ray Optics
For large angular magnification of refracting telescope, it has an objective lens of
- A small focal length and large diameter.
- B large focal length and large diameter.
- C large focal length and small diameter.
- D small focal length and small diameter.
Answer & Solution
Correct Answer
(B) large focal length and large diameter.
Step-by-step Solution
Detailed explanation
Angular magnification of astronomical refracting telescope in normal adjustment is given as \(m=\frac{f_0}{f_e}\) where, \(f_0\) and \(f_e\) are focal lengths of objective and eyepiece. Hence, for large angular magnification of refracting telescope, it has an objective lens of…
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