The Two Keck 10-Meter Telescopes,separated by a Distance of 85

question 54

Multiple Choice

The two Keck 10-meter telescopes,separated by a distance of 85 meters,can operate as an interferometer.What is its resolution when it observes in the infrared at a wavelength of 2 μm?

• A) 0.01 arcsec
• B) 0.005 arcsec
• C) 0.05 arcsec
• D) 0.2 arcsec

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