Author Question: The absorption lines for a cool thin gas are identical in color and energy to the emission lines of ... (Read 78 times)

nmorano1 · **on:** Jul 27, 2018

The absorption lines for a cool thin gas are identical in color and energy to the emission lines of the same gas if hot enough to glow.

Indicate whether the statement is true or false

Question 2

Which of the following is not a major reason why astronomers would like an observatory on the far side of the Moon?

A) Telescopes on the Moon could see objects in all parts of the sky equally well, whereas telescopes on Earth can see only portions of the sky that depend on their latitude.
B) Radio astronomy would be advantageous on the Moon because human radio transmissions are less likely to cause interference, especially on the far side of the Moon.
C) It would be possible to put telescopes for ultraviolet and X-ray astronomy on the surface, unlike the case on the surface of the Earth.
D) Telescopes on the Moon could observe stars even when it is daytime on the Moon.