Welcome to the Quiz!
This quiz contains 7 questions from a mix of 1 subtopics.
Visible light is the spectrum of wavelengths that our eyes ________ detect.
can
cannot
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Which type of electromagnetic waves have longer wavelengths?
Ultraviolet light
Visible light
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The acronym ROYGBIV can be used to remember the order of wavelengths in visible light, from longest to shortest wavelength.
Using the acronym, list those wavelengths in order below.
Red
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Which of the following is used to transmit data really quickly over very large distances (halfway around the earth)?
Planes
Optical fibres
Short wave radio
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While bouncing off the walls of optical fibres, all light rays must be totally reflected (rather than absorbed) at the same angle, so that the signal quality isn't reduced.
Therefore, the reflection must be which type of reflection?
Specular reflection
Diffuse reflection
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Ultraviolet light can be used to:
(Select all that apply)
Destroy microorganisms in water sterilisation
Cook food
Check for 'invisible markings' on passports
Give sun tans
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Fluorescence is:
Ultraviolet light energy being absorbed and re-emitted as visible light
The science of flowers
The science of flower scents
Emitting ultraviolet light
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