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:

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