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What is the ratio of frequency of visible light to frequency of audible sound?
Wiki User
∙ 9y ago
The lowest frequency of visible light ... assume wavelength = 750 nm ...
is around 400,000 GHz.
The highest frequency of audible sound is around 20 KHz.
So the smallest ratio ... lowest frequency of light to highest frequency of sound ...
is 4 x 1014/2 x 104 = 20 billion .
Wiki User
∙ 9y ago
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When light travels from air to glass its speed is what?
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ratio
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