COSMIC MICROWAVE BACKGROUND (CMB) RADIATION

1 mark · Easy

State the name given to the radiation that is considered the afterglow of the Big Bang and is detected in all directions of the universe.

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Cosmic microwave background (CMB) radiation

Also accept: cosmic microwave background radiation; CMB radiation

Common mistakes: Visible light background radiation; Ultraviolet background radiation

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Marking points

B1 · 1 mark · States that the radiation is 'cosmic microwave background (CMB) radiation'.

Worked solution

The radiation is called 'cosmic microwave background (CMB) radiation'.