A-LevelPhysicsWaves9702/12 · Feb/Mar 2021 · Q251 Mark
What is not a possible value for the wavelength of the named electromagnetic waves when it is travelling in a vacuum?
Aelectromagnetic wave: γ-rays, wavelength/m: 3 × 10⁻¹³
Belectromagnetic wave: X-rays, wavelength/m: 3 × 10⁻¹⁰
Celectromagnetic wave: infrared, wavelength/m: 3 × 10⁻⁶
Delectromagnetic wave: microwaves, wavelength/m: 3 × 10⁻⁵
✓ Correct answer
D: electromagnetic wave: microwaves, wavelength/m: 3 × 10⁻⁵
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