Infrared

1 mark · Easy

Which statement about infrared radiation is correct?

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Correct option: Infrared radiation can travel through a vacuum.

Common mistakes: Selecting 'Infrared radiation cannot travel through air.'; Selecting 'Infrared radiation is only present in sunlight.'; Selecting 'Infrared radiation is visible to the human eye.'

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Marking points

B1 · 1 mark · Correctly selects that infrared radiation can travel through a vacuum.

Worked solution

Like all electromagnetic waves, infrared radiation can travel through a vacuum.