The text discusses the astronomical telescope. Another type is the Galilean telescope, in which an objective lens gathers light (Figure) and tends to form an image at point A. An eyepiece consisting of a diverging lens intercepts the light before it comes to a focus and forms a virtual image at point B. When adjusted for minimum eyestrain, B is an infinite distance in front of the lens and parallel rays emerge from the lens, as in Figure b.An opera glass, which is a Galilean telescope, is used to view a 30.0-cm-tall singer??s head that is 40.0 m from the objective lens. The focal length of the objective is + 8.00 cm, and that of the eyepiece is ?? 2.00 cm. The telescope is adjusted so parallel rays enter the eye. Compute(a) The size of the real image that would have been formed by the objective,(b) The virtual object distance for the diverging lens,(c) The distance between the lenses, and(d) The overall angularmagnification.

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Objective Eyepiece B-=== 25.0 cm (a) (b)