A refracting telescope is used to view the moon diameter, Physics

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A refracting telescope is used to view the moon diameter

A refracting telescope is used to view the Moon (diameter 3480 km, distance from Earth 385,000 km). The focal lengths of the objective and eyepiece are +2.63 m and +18.9 cm, respectively.

(a) What should be the distance between the lenses?

m

(b) What is the diameter of the image produced by the objective?

cm

(c) What is the angular magnification?

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