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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.
Related Questions: - Out of the following which pair of quantities does not have same dimensions?
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Out of the following which pair of quantities does not have same dimensions?
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- Identify the paramagnetic substance
- An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels
- A proton and helium nucleus are shot into a magnetic field at right angles to the field
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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