The telescope at Yerkes Observatory in Wisconsin has an
Chapter , Problem 101(choose chapter or problem)
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of 10.0 cm. (a) What is the angular magnifi cation of the telescope? (b) If the telescope is used to look at a lunar crater whose diameter is 1500 m, what is the size of the fi rst image, assuming that the surface of the moon is 3.77 3 108 m from the surface of the earth? (c) How close does the crater appear to be when seen through the telescope?
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