Spec 0625
Revise CIE IGCSE Physics 6.2.3c The Big Bang Theory and cosmic microwave background radiation with the question bank and revision guides.
Know that redshift in the light from distant galaxies is evidence that the Universe is expanding and supports the Big Bang Theory • Supplement: Know that microwave radiation of a specific frequency is observed at all points in space around us and is known as cosmic microwave background radiation (CMBR) • Supplement: Explain that the CMBR was produced shortly after the Universe was formed and that this radiation has been expanded into the microwave region of the electromagnetic spectrum as the Universe expanded
