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What Angular Resolution Is Possible with the Keck Telescopes When

Question 56

Multiple Choice

What angular resolution is possible with the Keck telescopes when light from both telescopes is combined? (Assume observations are made in visible light at 500 nm wavelength.)


A) 1/20,000 arcsec
B) 1/200 arcsec
C) 1/2000 arcsec
D) 1/5 arcsec (limited by atmospheric turbulence, or "seeing")

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