Question

Which color has the highest wavelength and which color has the least wavelength on the visible spectrum?

Answer 1

Visible spectrum:

• “The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.”
• “A typical human eye will respond to wavelengths from about $380$ to about $750$ nanometers.”
• The red colour has the highest wavelength and the shortest frequency.
• The wavelength of the red colour is between $625$ to $740$ nanometers.
• Violet colour has the smallest wavelength and the highest frequency.
• The wavelength of violet colour is between $380$ to $450$ nanometers.