The colours of the visible light region of the electromagnetic spectrum that have the shortest and longest wavelengths respectively are
red and blue.
indigo and violet
violet and red.
yellow and blue.
Correct answer is C
The colors of the visible light spectrum with the shortest and longest wavelengths respectively are:
Violet and red.
Violet light has the shortest wavelength among visible colors, while red light has the longest wavelength. The visible light spectrum, in order of increasing wavelength, goes from violet to blue, green, yellow, orange, and finally red.