| ⇦ | 
| ⇨ |
The focal length of the objective of a terrestrial telescope is 80 cm and it is adjusted for parallel rays, then its power is 20. If the focal length of erecting lens is 20 cm, then full length of the telescope will be
Options
(a) 164 cm
(b) 124 cm
(c) 100 cm
(d) 84 cm
Correct Answer:
164 cm
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - At 0⁰C, 15 gm of ice melts to form water at 0⁰C. The change in entropy is
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- Large transformers, when used for some time, become hot and are cooled by circulating
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- At 0⁰C, 15 gm of ice melts to form water at 0⁰C. The change in entropy is
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- Large transformers, when used for some time, become hot and are cooled by circulating
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply