Physics (AS & A Level) · May / June 2022 · Paper 12 · Question 25
An electromagnetic wave in free space has a frequency of 2.5 × 10^14 Hz. Which region of the electromagnetic spectrum includes this frequency?
- Ainfrared
- Bmicrowave
- Cultraviolet
- DX-ray
As printed in the paper
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Correct answer: A. infrared
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