Radio telescopes are ____ telescopes.
a. Reflecting
b. Refracting
c. Deflecting
d. Compound
e. Retracting
Question 2
If the theory that novae occur in close binary systems is correct, then novae should
a. produce synchrotron radiation.
b. occur in regions of star formation.
c. not occur in old star clusters.
d. all be visual binaries.
e. repeat after some interval.