Multiple Choice
The two Keck 10-m telescopes, separated by a distance of 85 m, can operate as an optical interferometer.What is its resolution when it observes in the infrared at a wavelength of 2 microns?
A) 0.01 arcsec
B) 0.005 arcsec
C) 0.4 arcsec
D) 0.06 arcsec
E) 0.2 arcsec
Correct Answer:
Verified
Correct Answer:
Verified
Q10: What geographic properties should be considered when
Q11: Label the eyepiece, primary mirror, secondary mirror,
Q12: Why does combining the light from smaller
Q13: When you look at the side of
Q14: Remote-sensing instruments have been used to<br>A) map
Q16: Which of the following cannot be directly
Q17: What are some advantages and disadvantages of
Q18: Why are large telescopes often placed on
Q19: Which of the following is the best
Q20: A small backyard refracting telescope might have