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

Quizplus · Accepted Answer

The wavelength of the hydrogen line from level 1 to level 2 is determined by the energy difference between these two levels, which is a fundamental property of hydrogen and does not depend on the temperature of the star.

The Wavelength of the Hydrogen Line from Level 1 to Level