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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
- The work function of metals is in the range of 2 eV to 5 eV.
- SI unit of magnetic dipole moment is
- Two waves are represented by the equations y₁ = a sin (?t + kx + 0.57) m
- The workdone in turning a magnet of magnetic moment M by an angle of 90⁰ from the magnetic
- The ionization energy of Li⁺⁺ is equal to
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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