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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 of 146 kJ is performed in order to compress one kilo mole fo gas adiabatically
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
- The power supplied by a force acting on a particle moving in a straight line
- If r denotes the distance between sun and the earth, then the angular momentum of the earth
- A 100Ω resistance and a capacitor of 100Ω reactance are connected in series
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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