Author Question: The ratio of the light-gathering power of Reflecting Telescope 1 with a primary mirror of diameter ... (Read 85 times)

mynx · **on:** Jul 27, 2018

The ratio of the light-gathering power of Reflecting Telescope 1 with a primary mirror of diameter 1.6 m to Reflecting Telescope 2 with a primary mirror of diameter 0.008 m is ____.

A) 40 to 1
B) 400 to 1
C) 4000 to 1
D) 40,000 to 1

Question 2

Radio telescopes have poor resolving power because:

A) they have the smallest diameters.
B) they cannot measure wavelengths larger than 102 m.
C) radio waves have long wavelengths.
D) radio waves have small diffraction fringes.