What is the approximate range of wavelengths for the visible light spectrum
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400-700 nanometres
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Which visible colour has the lowest frequency
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Red
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Which visible colour has the highest frequency
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Violet
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What is the approximate speed of light in a vacuum
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300,000 kilometres / second
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The bending of light as it travels from one medium to another is called
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Refraction
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The relationship between illumination and distance is
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The inverse square
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In the visible spectrum, which colour is next to Red
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Orange
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In the visible spectrum, which colour is between Orange and Green
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Yellow
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