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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
The objective and the eyepiece of a refracting astronomical telescope have focal lengths of 320 cm and 4.0 cm, respectively. The telescope is used to view Neptune and the final image is set at infinity. The diameter of Neptune is 4.96 × 107 m, and its distance from Earth at the time of observation is 4.4 × 1012 m. What is the angle (in milliradians) subtended by the final telescopic image of Neptune?
A) 0.90 mrad
B) 1.1 mrad
C) 1.3 mrad
D) 1.5 mrad
E) 1.7 mrad
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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noreyaganoreyaga
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7 years ago
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Chery Author
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#2
7 years ago
Thanks a million
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