Astronomy Math questions help multiple choice?

Posted on 2016-10-13 18:48:00 in Math by ROBBOT

1. Which of the following telescopes has the best resolution? 

A. Galileo Galilei’s first telescope with a resolution of 0.5’ (0.5 arcminutes) 

B. The Yerkes Telescope with a resolution of 0.11” (0.11 arcseconds) 

C. The Hooker Telescope with a resolution of 0.046” (0.046 arcseconds) 

D. The Great Melbourne Telescope with a resolution of 0.091” (0.091 arcseconds) 

E. The Herschel Grand Telescope with a resolution of 0.092” (0.092 arcseconds) 
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2. An astronomer has access to ten different telescopes with given objective diameters: A 5 cm, a 4.6 cm, a 12.2 cm, a 19.3 cm, a 12.3 cm, a 10.1 cm, a 9.7 cm, a 6.11 cm, a 13.25 cm, and a 8.8 cm. Which telescope has the greatest light gathering ability? 

A. The 5 cm telescope 

B. The 4.6 cm telescope 

C. The 12.2 cm telescope 

D. The 19.3 cm telescope 

E. The 12.3 cm telescope 

F. The 10.1 cm telescope 

G. The 9.7 cm telescope 

H. The 6.11 cm telescope 

I. The 13.25 cm telescope 

J. The 8.8 cm telescope

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