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7.2 The Universe and red-shift

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Question 34
H

Light from a receding galaxy has a wavelength 1.20 times its laboratory wavelength. The speed of light is unchanged.

Using c=fλc=f\lambdac=fλ, what is the ratio of the observed frequency to the laboratory frequency?

[1]
A

1.201.201.20

B

0.2000.2000.200

C

6.006.006.00

D

0.8330.8330.833

Markscheme

7.2 The Universe and red-shift Questions

  1. GCSE
  2. /Physics
  3. /7.2 The Universe and red-shift

94 exam-style questions on Edexcel GCSE Physics 7.2 The Universe and red-shift, covering 7.2.1 Big Bang and Steady State theories, 7.2.2 Evidence for the Big Bang, 7.2.3 The Doppler effect and red-shift, 7.2.4 Red-shift as evidence for an expanding Universe, and 7.2.5 The CMB and the accepted model. Each one has a worked solution and a mark scheme showing where the marks go.

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