JEE · NEET Previous Year Question
An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of
Topic: NEET PYQ
Answer: C. Full step-by-step solution below.
- Asmall focal length and large diameter
- Blarge focal length and small diameter
- Clarge focal length and large diameter
- Dsmall focal length and small diameter.
Correct answer: C
Solution
(c): For telescope, angular magnificationAngular resolution should be large.
So, objective lens should have large focal length and large diameter for large angular magnification and high angular resolution.
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