Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 25
Which statement about electromagnetic waves is correct?
- AA wave of wavelength 5.0 × 10⁻⁶ m is invisible to the human eye.
- BThey can all travel at different speeds in free space.
- CThey cannot be polarised.
- DThey consist of vibrating atoms.
As printed in the paper
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Correct answer: A. A wave of wavelength 5.0 × 10⁻⁶ m is invisible to the human eye.
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