The Big Bang, red-shift and the expanding Universe

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Question 11
Easy

A student compared the absorption spectra of a specific element from a laboratory benchmark on Earth, a nearby galaxy (Galaxy A), and a more distant galaxy (Galaxy B).

A diagram showing three absorption spectra positioned stacked vertically above a wavelength scale.

Estimate the difference in wavelength (in nm) for Line Q between the spectrum observed from the distant galaxy (Galaxy B) and the reference spectrum on Earth.

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The Big Bang, red-shift and the expanding Universe Questions

  1. GCSE
  2. /Physics
  3. /The Big Bang, red-shift and the expanding Universe