calculate the longest wavelength visible to the human eye

To calculate the longest wavelength visible to the human eye, we need to consult the electromagnetic spectrum and identify the range of wavelengths that can be perceived by humans.

The visible spectrum for humans ranges from approximately 400 to 700 nanometers (nm). The longest wavelength that falls within this range will represent the color at the far end of the visible spectrum.

To calculate the longest wavelength visible to the human eye, we can use the formula:

Longest wavelength = 700 nm

Therefore, the longest wavelength visible to the human eye is approximately 700 nanometers.

You can't calculate anything without data.

Most texts list 700 nm on the red end and 400 nm on the violet end of the spectrum as the range of vision for the human eye. Of course this is a "typical" set of numbers.