A focal arrangement that has a secondary mirror that reflects the focused light back through a hole in the primary mirror is a _

Question

Genrish500 [490]

3 years ago

7

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

Biology

1 answer:

sveticcg [70] · Answer 1 · 2022-03-26T01:08:20+03:00

sveticcg [70]3 years ago

7 0

<span> a. Cassegrain focus</span> 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.