Multiple Choice
Suppose you want to know the chemical composition of a distant star.Which piece of information is most useful to you?
A) The peak energy of the star's thermal radiation.
B) The Doppler shift of the star's spectrum.
C) The wavelengths of spectral lines in the star's spectrum.
D) Whether the star's spectrum has more emission lines or more absorption lines.
Correct Answer:
Verified
Correct Answer:
Verified
Q38: Process of Science: I am doing science
Q63: If we observe one edge of a
Q64: X-rays always have more energy than radio
Q65: The spectra of most galaxies show redshifts.This
Q66: The spectra of most galaxies show redshifts.This
Q67: Which of the following conditions lead you
Q69: There are more atoms in a glass
Q70: An atom that has fewer electrons than
Q71: Which of the following statements is true
Q72: Suppose you had molecular oxygen (O₂)chilled enough