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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 refracting angle of a prism is A and refractive index of the material of the prism
- In Young’s double slit experiment with sodium vapour lamp of wavelength
- A 5 watt source emits monochromatic light of wavelength 5000Å. When placed
- A wire of length L metre carrying a current I ampere is bent in the form
- If the velocity of charged particle has both perpendicular and parallel components
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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