Question

In an astronomical telescope in normal adjustment a straight
black line of lenght 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 l. The magnification of the telescope is :
(a) L/I - 1
(b)L + I/L - I
(c) L/I
(d) L/I + 1

Answer 1

Answer:

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Answer 2

Answer:

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