A focal arrangement that has a secondary mirror that reflects the focused light back through a hole in the primary mirror is a _______________.
A. Cassegrain focus
B. Newtonian focus
C. Schmidt-Cassegrain focus
D. Schmidt focus

Question

A focal arrangement that has a secondary mirror that reflects the focused light back through a hole in the primary mirror is a _______________. 
	A.	Cassegrain focus
	B.	Newtonian focus
	C.	Schmidt-Cassegrain focus
	D.	Schmidt focus

brittneym1998 · Answer

@texaschic101

tennis5518 · Answer

a. Cassegrain focus is the focal arrangement in a Cassegrain reflector used in optical telescopes and radio antennas. The primary mirror is a concave mirror, and the secondary mirror that reflects the focused light back to it is a convex mirror.

So the answer is A.

tennis5518 · Answer

Click on the "best response" if it did help!