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

question 53

Multiple Choice

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

• A) 0.01 arcsec
• B) 0.006 arcsec
• C) 0.05 arcsec
• D) 0.2 arcsec

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