The Wavelength of the Hydrogen Line from Level 1 to Level

question 101

Multiple Choice

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

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