Infrared

1 mark · Normal

Which statement about infrared radiation is correct?

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Correct option: All objects emit infrared radiation, but only hot objects emit visible light.

Common mistakes: Infrared passes through all objects; Only hot objects emit

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Marking points

A1 · 1 mark · Chooses the correct answer.

Worked solution

Correct answer: All objects emit infrared radiation, but only hot objects emit visible light.