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8.2 Red-shift

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Question 8

An astronomy survey records the increase in wavelength of the same spectral line from two galaxies. Both galaxies are receding from the Earth.

GalaxyIncrease in wavelength
K12 nm
L27 nm

Which statement correctly compares the recession speeds of galaxies K and L?

[1]
A

Galaxy L has the greater recession speed

B

The wavelength increases do not show which speed is greater

C

The two galaxies have equal recession speeds

D

Galaxy K has the greater recession speed

Markscheme

8.2 Red-shift Questions

  1. GCSE
  2. /Physics
  3. /8.2 Red-shift

79 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.

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