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In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is I. The magnification of the telescope is
Options
(a) L+I/L-I
(b) L/I
(c) (L/I) +1
(d) (L/I ) -1
Correct Answer:
L/I
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 ball is moving in a circular path of radius 5 m.If tangential acceleration
- The total energy of an electron in the first excited state of hydrogen atom
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
- An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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