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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
- How much work is required to carry a 6 μC charge from the negative terminal
- Find out the angle of projection, if range is 4 times of maximum height
- An aeroplane is flying horizontally with a velocity of 216 km/h at a height of 1960 m.
- A bar magnet of magnetic moment M is placed at right angles to a magnetic
- The masses of three wires of copper are in the ratio 1:3:5 and lengths
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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