What is the maximum frequency of visible light in hertz?

All frequencies of light in hertz are in between
and


Light with a lower frequency than 4 * 10^14 Hz, are called infrared and can't be seen by human eye. Light with a higher frequency than 8 * 10^14 Hz, are called ultraviolet and can't bee seen by human eye. 

Therefore, the maximum frequency of visible light in Hz, is  8 * 10^14 Hz

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