Which row correctly describes light waves and radio waves?
A
B
C
D
Which row shows the nature of light waves, sound waves and X-rays?
Visible light has a frequency of approximately 5.0 × 10^14 Hz. M and N are two other types of electromagnetic radiation. The frequency of M is 5.0 × 10^6 Hz. The frequency of N is 5.0 × 10^15 Hz.
Which types of radiation are M and N?
The diagram represents the electromagnetic spectrum. Some regions have been labelled, and some labels are missing.
Which region should be labelled as infra-red waves?
Which group contains only electromagnetic waves?
A light waves, radio waves, γ-rays
B light waves, radio waves, sound waves
C light waves, sound waves, γ-rays
D radio waves, sound waves, γ-rays
The diagram shows the electromagnetic spectrum. A word is missing from the label below the spectrum.
Which word is missing?
A amplitude
B frequency
C speed
D wavelength
How do infra-red waves differ from ultraviolet waves?
A Infra-red waves are longitudinal.
B Infra-red waves have a lower speed in vacuo (in a vacuum).
C Infra-red waves have lower frequencies.
D Infra-red waves have smaller wavelengths.
Which list shows electromagnetic waves in order of increasing frequency?
A visible light, X-rays, γ-rays
B visible light, γ-rays, X-rays
C X-rays, γ-rays, visible light
D γ-rays, X-rays, visible light
Which statement about ultraviolet waves is correct?
A They are used in television remote controllers.
B They can be detected by the human eye.
C They travel as longitudinal waves.
D They have the same speed in a vacuum as radio waves.
Which type of electromagnetic wave is used in airport security scanners?
A infra-red
B microwaves
C radio waves
D X-rays
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