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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.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following is not due to total internal reflection?
- A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- The wave function (in SI unit) for a light wave is given as Ψ(x,t)= 10³ sin π
- A soap bubble is charged to a potential 12V. If its radius is doubled,
- An air core coil and an electric bulb are connected in series with an AC source.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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