Author Question: ________ galaxies seem to represent a transition between quasars and similar active nuclei compared ... (Read 23 times)

maegan_martin · **on:** Jul 27, 2018

________ galaxies seem to represent a transition between quasars and similar active nuclei compared to more normal spirals.

Fill in the blank(s) with correct word

Question 2

The Chandra X-ray telescope must use:

A) a lens of fluorite.
B) grazing incidence optics to focus the short wavelengths.
C) a Newtonian reflecting design to avoid chromatic aberration.
D) X-ray film instead of CCDs for imaging.
E) a Schmidt corrector plate to avoid spherical aberration.