|
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 magnification 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 first image, assuming that the surface of the moon is 3.77 × 108 m from the surface of the earth?
(c) How close does the crater appear to be when seen through the telescope? |
| New search. (Also 5349 free access solutions) |