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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
- A spherical conductor of radius 2 m is charged to a potential of 120 V. It is now
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
- A thermodynamic system undergoes cyclic process ABCDA as shown in figure
- Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å.
- At which place, Earth’s magnetism becomes horizontal
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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