Four galaxies are all moving away from the Earth.
Which galaxy shows the biggest observed increase in wavelength?
The galaxy that is 20 million light years away
The galaxy that is 900 million light years away
The galaxy that is 150 million light years away
The galaxy that is 60 million light years away
41 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.