Determine length of the barrel of the telescope

Reference no: EM13261004

The telescope at a small observatory has objective and eyepiece focal lengths respectively of 20.0 m and 12 cm. If this telescope is used to view a 1620 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

(b) size of the first image

(d) angle subtended at the unaided eye by the lunar crater

rad

(e) angle subtended at the eye when the lunar crater is viewed through the telescope

rad

Reference no: EM13261004

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