The H line has a wavelength of 410.2 nm when observed in the ...

[CBme]

The H line has a wavelength of 410.2 nm when observed in the laboratory. If the H line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?
 
  a. 146 km/s away from the observer
  b. 146 km/s toward the observer
  c. 6.0  107 m/s away from the observer
  d. 6.0  107 m/s toward the observer
  e. The radial velocity of the star cannot be determined from this information.

Question 2

Choose the correct word(s) that make the statement true. A (lunar, solar) eclipse occurs when the Moon is (new, quarter, gibbous, full) and the ordering of aligned celestial objects is always Sun, Earth, Moon.
 
  What will be an ideal response?

[Eazy416]

Answer to Question 1

b

Answer to Question 2

lunar, full

[CBme]

Both answers were spot on, thank you once again

[Eazy416]

Great! Please up vote