In an astronomical telescope in normal adjustment a straight black line of length

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.

admin:

Related Questions

  1. Weber ampere per metre is equal to
  2. Electric field at a point of distance r from a uniformly charged wire of infinite
  3. When a current of (2.5±0.5) A flows through a wire, it develops a potential difference
  4. Which two of the following five physical parameters have the same dimensions?
  5. An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance.