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6.2 Stars and the Universe

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Question 6

Which statement about the cosmic microwave background radiation (CMBR) is correct?

A

The temperature of the CMBR is increasing as the Universe expands.

B

CMBR now has a frequency lower than its frequency in the past.

C

CMBR was emitted before the Big Bang occurred.

D

The peak of the CMBR spectrum is currently in the visible light range.

Markscheme

6.2 Stars and the Universe Questions

  1. IGCSE
  2. /Physics
  3. /6.2 Stars and the Universe

104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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