CAIE IGCSE Physics 6.2.3.6 The Cmbr Was Produced Shortly After Questions

Use this IGCSE Physics objective to explain that cosmic microwave background radiation was produced shortly after the Big Bang, supported by examined Paper 4 questions and mark schemes.

Exam points

Explain that the cosmic microwave background radiation was produced shortly after the Big Bang.

[Maximum number: 3]

(a)

Cosmic microwave background radiation (CMBR) is observed at all points in space.

[ 3 ]

(i)

State when this radiation was produced.

[ 1 ]

(ii)

Explain why this radiation is now in the microwave region of the electromagnetic spectrum.

[ 2 ]

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CAIE IGCSE Physics 6.2.3.6 The Cmbr Was Produced Shortly After Questions question 1

Question (a)

Question (i)

Question (ii)