Author Question: The wavelength of the hydrogen line from level 1 to level 2 in a hot star is ____________ the ... (Read 147 times)

lracut11 · **on:** Jul 27, 2018

The wavelength of the hydrogen line from level 1 to level 2 in a hot star is ____________ the wavelength of the same line in a cool star. The stars have the same radial velocities away from Earth.

a. larger than
b. the same as
c. smaller than
d. not enough information to answer

Question 2

You are located at 40 degrees south latitude on Earth and the northern hemisphere is experiencing winter. Days for you are short whereas nights for you are long.

a. True
b. False
Indicate whether the statement is true or false