CAIE IGCSE Physics Electromagnetic Spectrum Order

Practise placing electromagnetic regions in wavelength or frequency order and identify which lie immediately above, below or around visible light.

Exam points

order increasing frequency as radio, microwave, infrared, visible, ultraviolet, X-ray, gamma
reverse the sequence for increasing wavelength and compare each region with visible light
identify an unknown region from a wavelength value, frequency rank or neighbouring bands

[Maximum number: 2]

(a)

Visible light is an electromagnetic wave.

State the name of one region of the electromagnetic spectrum in which the waves have:

[ 2 ]

(i)

shorter wavelengths than visible light

[ 1 ]

(ii)

longer wavelengths than visible light.

[ 1 ]

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