Working waves

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Can you name the answers to questions on working waves?

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Question
A remote control uses _________ radiation
What is the approximate range of wavelengths for visible light
What type of waves are electromagnetic waves?
What is core diameter of monomode fibre?
Which type of optical fibre is used in short distance data?
Which type of optical fibre is used in long distance data transmissions?
All objects emit
What are optical fibres made from?
Which type of optical fibre has a sudden change in the refractive index?
Question
What is core diameter of step index fibre?
What is the speed of light in m/s?
Which type of optical fibre has a gradual chnage in refractive index?
Give an example of a longitudinal wave
Gamma waves have a ________ frequency
Convert 20 ns into seconds
What is the electromagnetic wave with the lowest frequency?
What is frequency measured in?
Radiowaves have a _________ wavelength

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