The telescope at a small observatory has objective and eyepiece focal lengths of 16.0 m and 12 cm, respectively. If this telescope is used to view a 1880 m diameter lunar crater on the surface of the Moon 3.77 108 m from the surface of the Earth, determine the following.
(a) angular magnification of the telescope (Include the appropriate positive or negative sign.)
(b) size of the first image (Include the appropriate positive or negative sign.)
m
(c) length of the barrel of the telescope
m
(d) angle subtended at the unaided eye by the lunar crater
rad
(e) the absolute value of the angle subtended at the eye when the lunar crater is viewed through the telescope
rad