A-LevelPhysicsWaves9702/12 · May/June 2019 · Q271 Mark

The electromagnetic spectrum consists of waves with different wavelengths. Which row correctly identifies regions of the electromagnetic spectrum?

A10⁻¹⁰ m: microwaves, 10⁻⁸ m: X-rays, 10⁻⁵ m: ultraviolet, 10⁻² m: infrared

B10⁻¹⁰ m: infrared, 10⁻⁸ m: microwaves, 10⁻⁵ m: X-rays, 10⁻² m: ultraviolet

C10⁻¹⁰ m: microwaves, 10⁻⁸ m: infrared, 10⁻⁵ m: ultraviolet, 10⁻² m: X-rays

D10⁻¹⁰ m: X-rays, 10⁻⁸ m: ultraviolet, 10⁻⁵ m: infrared, 10⁻² m: microwaves

✓ Correct answer

D: 10⁻¹⁰ m: X-rays, 10⁻⁸ m: ultraviolet, 10⁻⁵ m: infrared, 10⁻² m: microwaves

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